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Finding the Fourth Proportional to 61,707.96, 85,158.54 and 37,847.79

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Solution

The fourth proportional to 61,707.96, 85,158.54 and 37,847.79 is: 52,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,707.96 : 85,158.54 = 37,847.79 : x
  2. Step 2: Convert to fraction form
    61,707.96/85,158.54 = 37,847.79/x
  3. Step 3: Cross multiply
    61,707.96x = 85,158.54 × 37,847.79
  4. Step 4: Simplify right side
    61,707.96x = 3,223,062,538.63
  5. Step 5: Solve for x
    x = 3,223,062,538.63/61,707.96
  6. Step 6: Final answer
    x = 52,230.90

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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.