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Finding the Fourth Proportional to 86,006.70, 118,689.24 and 48,280.92

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Solution

The fourth proportional to 86,006.70, 118,689.24 and 48,280.92 is: 66,627.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,006.70 : 118,689.24 = 48,280.92 : x
  2. Step 2: Convert to fraction form
    86,006.70/118,689.24 = 48,280.92/x
  3. Step 3: Cross multiply
    86,006.70x = 118,689.24 × 48,280.92
  4. Step 4: Simplify right side
    86,006.70x = 5,730,425,701.30
  5. Step 5: Solve for x
    x = 5,730,425,701.30/86,006.70
  6. Step 6: Final answer
    x = 66,627.67

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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.