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Finding the Fourth Proportional to 32,715.80, 45,148.02 and 18,568.88

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Solution

The fourth proportional to 32,715.80, 45,148.02 and 18,568.88 is: 25,625.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,715.80 : 45,148.02 = 18,568.88 : x
  2. Step 2: Convert to fraction form
    32,715.80/45,148.02 = 18,568.88/x
  3. Step 3: Cross multiply
    32,715.80x = 45,148.02 × 18,568.88
  4. Step 4: Simplify right side
    32,715.80x = 838,348,165.62
  5. Step 5: Solve for x
    x = 838,348,165.62/32,715.80
  6. Step 6: Final answer
    x = 25,625.18

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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.