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Finding the Fourth Proportional to 62,794.28, 86,572.32 and 53,803.28

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Solution

The fourth proportional to 62,794.28, 86,572.32 and 53,803.28 is: 74,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,794.28 : 86,572.32 = 53,803.28 : x
  2. Step 2: Convert to fraction form
    62,794.28/86,572.32 = 53,803.28/x
  3. Step 3: Cross multiply
    62,794.28x = 86,572.32 × 53,803.28
  4. Step 4: Simplify right side
    62,794.28x = 4,657,874,773.21
  5. Step 5: Solve for x
    x = 4,657,874,773.21/62,794.28
  6. Step 6: Final answer
    x = 74,176.74

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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.