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Finding the Fourth Proportional to 65,902.60, 99,084.30 and 64,520.20

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Solution

The fourth proportional to 65,902.60, 99,084.30 and 64,520.20 is: 97,005.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,902.60 : 99,084.30 = 64,520.20 : x
  2. Step 2: Convert to fraction form
    65,902.60/99,084.30 = 64,520.20/x
  3. Step 3: Cross multiply
    65,902.60x = 99,084.30 × 64,520.20
  4. Step 4: Simplify right side
    65,902.60x = 6,392,938,852.86
  5. Step 5: Solve for x
    x = 6,392,938,852.86/65,902.60
  6. Step 6: Final answer
    x = 97,005.87

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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.