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Finding the Fourth Proportional to 61,801.04, 92,729.20 and 28,503.30

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Solution

The fourth proportional to 61,801.04, 92,729.20 and 28,503.30 is: 42,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,801.04 : 92,729.20 = 28,503.30 : x
  2. Step 2: Convert to fraction form
    61,801.04/92,729.20 = 28,503.30/x
  3. Step 3: Cross multiply
    61,801.04x = 92,729.20 × 28,503.30
  4. Step 4: Simplify right side
    61,801.04x = 2,643,088,206.36
  5. Step 5: Solve for x
    x = 2,643,088,206.36/61,801.04
  6. Step 6: Final answer
    x = 42,767.70

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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.