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Finding the Fourth Proportional to 66,444.60, 99,671.70 and 22,102.20

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Solution

The fourth proportional to 66,444.60, 99,671.70 and 22,102.20 is: 33,154.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,444.60 : 99,671.70 = 22,102.20 : x
  2. Step 2: Convert to fraction form
    66,444.60/99,671.70 = 22,102.20/x
  3. Step 3: Cross multiply
    66,444.60x = 99,671.70 × 22,102.20
  4. Step 4: Simplify right side
    66,444.60x = 2,202,963,847.74
  5. Step 5: Solve for x
    x = 2,202,963,847.74/66,444.60
  6. Step 6: Final answer
    x = 33,154.90

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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.