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Finding the Fourth Proportional to 61,612.96, 85,019.57 and 45,488.83

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Solution

The fourth proportional to 61,612.96, 85,019.57 and 45,488.83 is: 62,769.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,612.96 : 85,019.57 = 45,488.83 : x
  2. Step 2: Convert to fraction form
    61,612.96/85,019.57 = 45,488.83/x
  3. Step 3: Cross multiply
    61,612.96x = 85,019.57 × 45,488.83
  4. Step 4: Simplify right side
    61,612.96x = 3,867,440,538.96
  5. Step 5: Solve for x
    x = 3,867,440,538.96/61,612.96
  6. Step 6: Final answer
    x = 62,769.92

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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.