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Finding the Fourth Proportional to 66,226.80, 99,340.20 and 59,009.70

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Solution

The fourth proportional to 66,226.80, 99,340.20 and 59,009.70 is: 88,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,226.80 : 99,340.20 = 59,009.70 : x
  2. Step 2: Convert to fraction form
    66,226.80/99,340.20 = 59,009.70/x
  3. Step 3: Cross multiply
    66,226.80x = 99,340.20 × 59,009.70
  4. Step 4: Simplify right side
    66,226.80x = 5,862,035,399.94
  5. Step 5: Solve for x
    x = 5,862,035,399.94/66,226.80
  6. Step 6: Final answer
    x = 88,514.55

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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.