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Finding the Fourth Proportional to 12,462.38, 17,197.47 and 7,426.49

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Solution

The fourth proportional to 12,462.38, 17,197.47 and 7,426.49 is: 10,248.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462.38 : 17,197.47 = 7,426.49 : x
  2. Step 2: Convert to fraction form
    12,462.38/17,197.47 = 7,426.49/x
  3. Step 3: Cross multiply
    12,462.38x = 17,197.47 × 7,426.49
  4. Step 4: Simplify right side
    12,462.38x = 127,716,752.99
  5. Step 5: Solve for x
    x = 127,716,752.99/12,462.38
  6. Step 6: Final answer
    x = 10,248.19

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Half scale
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Double scale
Find fourth proportional to 12,463.38, 17,198.85 and 7,427.49
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.