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Finding the Fourth Proportional to 66,023.78, 99,034.51 and 60,881.20

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Solution

The fourth proportional to 66,023.78, 99,034.51 and 60,881.20 is: 91,320.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,023.78 : 99,034.51 = 60,881.20 : x
  2. Step 2: Convert to fraction form
    66,023.78/99,034.51 = 60,881.20/x
  3. Step 3: Cross multiply
    66,023.78x = 99,034.51 × 60,881.20
  4. Step 4: Simplify right side
    66,023.78x = 6,029,339,810.21
  5. Step 5: Solve for x
    x = 6,029,339,810.21/66,023.78
  6. Step 6: Final answer
    x = 91,320.73

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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.