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Finding the Fourth Proportional to 77,648.80, 116,500.53 and 38,233.60

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Solution

The fourth proportional to 77,648.80, 116,500.53 and 38,233.60 is: 57,363.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,648.80 : 116,500.53 = 38,233.60 : x
  2. Step 2: Convert to fraction form
    77,648.80/116,500.53 = 38,233.60/x
  3. Step 3: Cross multiply
    77,648.80x = 116,500.53 × 38,233.60
  4. Step 4: Simplify right side
    77,648.80x = 4,454,234,663.81
  5. Step 5: Solve for x
    x = 4,454,234,663.81/77,648.80
  6. Step 6: Final answer
    x = 57,363.86

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1.5x scale

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.