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Finding the Fourth Proportional to 66,692.90, 92,044.14 and 38,404.10

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Solution

The fourth proportional to 66,692.90, 92,044.14 and 38,404.10 is: 53,002.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,692.90 : 92,044.14 = 38,404.10 : x
  2. Step 2: Convert to fraction form
    66,692.90/92,044.14 = 38,404.10/x
  3. Step 3: Cross multiply
    66,692.90x = 92,044.14 × 38,404.10
  4. Step 4: Simplify right side
    66,692.90x = 3,534,872,356.97
  5. Step 5: Solve for x
    x = 3,534,872,356.97/66,692.90
  6. Step 6: Final answer
    x = 53,002.23

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1.5x scale

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.