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Finding the Fourth Proportional to 67,032.78, 100,549.08 and 17,112.88

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Solution

The fourth proportional to 67,032.78, 100,549.08 and 17,112.88 is: 25,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,032.78 : 100,549.08 = 17,112.88 : x
  2. Step 2: Convert to fraction form
    67,032.78/100,549.08 = 17,112.88/x
  3. Step 3: Cross multiply
    67,032.78x = 100,549.08 × 17,112.88
  4. Step 4: Simplify right side
    67,032.78x = 1,720,684,340.15
  5. Step 5: Solve for x
    x = 1,720,684,340.15/67,032.78
  6. Step 6: Final answer
    x = 25,669.30

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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.