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Finding the Fourth Proportional to 40,692.48, 61,044.84 and 14,397.48

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Solution

The fourth proportional to 40,692.48, 61,044.84 and 14,397.48 is: 21,598.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,692.48 : 61,044.84 = 14,397.48 : x
  2. Step 2: Convert to fraction form
    40,692.48/61,044.84 = 14,397.48/x
  3. Step 3: Cross multiply
    40,692.48x = 61,044.84 × 14,397.48
  4. Step 4: Simplify right side
    40,692.48x = 878,891,863.00
  5. Step 5: Solve for x
    x = 878,891,863.00/40,692.48
  6. Step 6: Final answer
    x = 21,598.39

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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.