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Finding the Fourth Proportional to 12,798.63, 17,663.24 and 7,423.07

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Solution

The fourth proportional to 12,798.63, 17,663.24 and 7,423.07 is: 10,244.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.63 : 17,663.24 = 7,423.07 : x
  2. Step 2: Convert to fraction form
    12,798.63/17,663.24 = 7,423.07/x
  3. Step 3: Cross multiply
    12,798.63x = 17,663.24 × 7,423.07
  4. Step 4: Simplify right side
    12,798.63x = 131,115,397.19
  5. Step 5: Solve for x
    x = 131,115,397.19/12,798.63
  6. Step 6: Final answer
    x = 10,244.49

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Half scale
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Double scale
Find fourth proportional to 12,799.63, 17,664.62 and 7,424.07
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.