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Finding the Fourth Proportional to 86,684.83, 119,609.85 and 48,432.15

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Solution

The fourth proportional to 86,684.83, 119,609.85 and 48,432.15 is: 66,827.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,684.83 : 119,609.85 = 48,432.15 : x
  2. Step 2: Convert to fraction form
    86,684.83/119,609.85 = 48,432.15/x
  3. Step 3: Cross multiply
    86,684.83x = 119,609.85 × 48,432.15
  4. Step 4: Simplify right side
    86,684.83x = 5,792,961,356.47
  5. Step 5: Solve for x
    x = 5,792,961,356.47/86,684.83
  6. Step 6: Final answer
    x = 66,827.86

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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.