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Finding the Fourth Proportional to 66,497.56, 99,762.60 and 22,124.20

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Solution

The fourth proportional to 66,497.56, 99,762.60 and 22,124.20 is: 33,191.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,497.56 : 99,762.60 = 22,124.20 : x
  2. Step 2: Convert to fraction form
    66,497.56/99,762.60 = 22,124.20/x
  3. Step 3: Cross multiply
    66,497.56x = 99,762.60 × 22,124.20
  4. Step 4: Simplify right side
    66,497.56x = 2,207,167,714.92
  5. Step 5: Solve for x
    x = 2,207,167,714.92/66,497.56
  6. Step 6: Final answer
    x = 33,191.71

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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.