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Finding the Fourth Proportional to 62,776.64, 94,164.80 and 39,419.48

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Solution

The fourth proportional to 62,776.64, 94,164.80 and 39,419.48 is: 59,129.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,776.64 : 94,164.80 = 39,419.48 : x
  2. Step 2: Convert to fraction form
    62,776.64/94,164.80 = 39,419.48/x
  3. Step 3: Cross multiply
    62,776.64x = 94,164.80 × 39,419.48
  4. Step 4: Simplify right side
    62,776.64x = 3,711,927,450.30
  5. Step 5: Solve for x
    x = 3,711,927,450.30/62,776.64
  6. Step 6: Final answer
    x = 59,129.12

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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.