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Finding the Fourth Proportional to 10,368.74, 15,553.10 and 2,577.55

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Solution

The fourth proportional to 10,368.74, 15,553.10 and 2,577.55 is: 3,866.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.74 : 15,553.10 = 2,577.55 : x
  2. Step 2: Convert to fraction form
    10,368.74/15,553.10 = 2,577.55/x
  3. Step 3: Cross multiply
    10,368.74x = 15,553.10 × 2,577.55
  4. Step 4: Simplify right side
    10,368.74x = 40,088,892.91
  5. Step 5: Solve for x
    x = 40,088,892.91/10,368.74
  6. Step 6: Final answer
    x = 3,866.32

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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.