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Finding the Fourth Proportional to 32,543.40, 48,815.12 and 16,991.40

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Solution

The fourth proportional to 32,543.40, 48,815.12 and 16,991.40 is: 25,487.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,543.40 : 48,815.12 = 16,991.40 : x
  2. Step 2: Convert to fraction form
    32,543.40/48,815.12 = 16,991.40/x
  3. Step 3: Cross multiply
    32,543.40x = 48,815.12 × 16,991.40
  4. Step 4: Simplify right side
    32,543.40x = 829,437,229.97
  5. Step 5: Solve for x
    x = 829,437,229.97/32,543.40
  6. Step 6: Final answer
    x = 25,487.11

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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.