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Finding the Fourth Proportional to 32,079.42, 48,113.64 and 8,700.39

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Solution

The fourth proportional to 32,079.42, 48,113.64 and 8,700.39 is: 13,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,079.42 : 48,113.64 = 8,700.39 : x
  2. Step 2: Convert to fraction form
    32,079.42/48,113.64 = 8,700.39/x
  3. Step 3: Cross multiply
    32,079.42x = 48,113.64 × 8,700.39
  4. Step 4: Simplify right side
    32,079.42x = 418,607,432.32
  5. Step 5: Solve for x
    x = 418,607,432.32/32,079.42
  6. Step 6: Final answer
    x = 13,049.10

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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.