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Finding the Fourth Proportional to 85,324.86, 127,978.65 and 23,001.66

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Solution

The fourth proportional to 85,324.86, 127,978.65 and 23,001.66 is: 34,500.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,324.86 : 127,978.65 = 23,001.66 : x
  2. Step 2: Convert to fraction form
    85,324.86/127,978.65 = 23,001.66/x
  3. Step 3: Cross multiply
    85,324.86x = 127,978.65 × 23,001.66
  4. Step 4: Simplify right side
    85,324.86x = 2,943,721,394.56
  5. Step 5: Solve for x
    x = 2,943,721,394.56/85,324.86
  6. Step 6: Final answer
    x = 34,500.16

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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.