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Finding the Fourth Proportional to 66,529.30, 99,793.95 and 47,769.70

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Solution

The fourth proportional to 66,529.30, 99,793.95 and 47,769.70 is: 71,654.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,529.30 : 99,793.95 = 47,769.70 : x
  2. Step 2: Convert to fraction form
    66,529.30/99,793.95 = 47,769.70/x
  3. Step 3: Cross multiply
    66,529.30x = 99,793.95 × 47,769.70
  4. Step 4: Simplify right side
    66,529.30x = 4,767,127,053.32
  5. Step 5: Solve for x
    x = 4,767,127,053.32/66,529.30
  6. Step 6: Final answer
    x = 71,654.55

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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.