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Finding the Fourth Proportional to 62,774.64, 94,161.80 and 39,417.48

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Solution

The fourth proportional to 62,774.64, 94,161.80 and 39,417.48 is: 59,126.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,774.64 : 94,161.80 = 39,417.48 : x
  2. Step 2: Convert to fraction form
    62,774.64/94,161.80 = 39,417.48/x
  3. Step 3: Cross multiply
    62,774.64x = 94,161.80 × 39,417.48
  4. Step 4: Simplify right side
    62,774.64x = 3,711,620,868.26
  5. Step 5: Solve for x
    x = 3,711,620,868.26/62,774.64
  6. Step 6: Final answer
    x = 59,126.12

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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.