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Finding the Fourth Proportional to 61,149.90, 84,351.06 and 38,452.98

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Solution

The fourth proportional to 61,149.90, 84,351.06 and 38,452.98 is: 53,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,149.90 : 84,351.06 = 38,452.98 : x
  2. Step 2: Convert to fraction form
    61,149.90/84,351.06 = 38,452.98/x
  3. Step 3: Cross multiply
    61,149.90x = 84,351.06 × 38,452.98
  4. Step 4: Simplify right side
    61,149.90x = 3,243,549,623.16
  5. Step 5: Solve for x
    x = 3,243,549,623.16/61,149.90
  6. Step 6: Final answer
    x = 53,042.60

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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.