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Finding the Fourth Proportional to 8,140.13, 12,210.19 and 2,593.48

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Solution

The fourth proportional to 8,140.13, 12,210.19 and 2,593.48 is: 3,890.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.13 : 12,210.19 = 2,593.48 : x
  2. Step 2: Convert to fraction form
    8,140.13/12,210.19 = 2,593.48/x
  3. Step 3: Cross multiply
    8,140.13x = 12,210.19 × 2,593.48
  4. Step 4: Simplify right side
    8,140.13x = 31,666,849.69
  5. Step 5: Solve for x
    x = 31,666,849.69/8,140.13
  6. Step 6: Final answer
    x = 3,890.21

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.