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Finding the Fourth Proportional to 32,681.76, 45,108.84 and 18,542.88

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Solution

The fourth proportional to 32,681.76, 45,108.84 and 18,542.88 is: 25,593.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,681.76 : 45,108.84 = 18,542.88 : x
  2. Step 2: Convert to fraction form
    32,681.76/45,108.84 = 18,542.88/x
  3. Step 3: Cross multiply
    32,681.76x = 45,108.84 × 18,542.88
  4. Step 4: Simplify right side
    32,681.76x = 836,447,807.06
  5. Step 5: Solve for x
    x = 836,447,807.06/32,681.76
  6. Step 6: Final answer
    x = 25,593.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.