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Finding the Fourth Proportional to 32,079.84, 48,122.45 and 8,387.34

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Solution

The fourth proportional to 32,079.84, 48,122.45 and 8,387.34 is: 12,581.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,079.84 : 48,122.45 = 8,387.34 : x
  2. Step 2: Convert to fraction form
    32,079.84/48,122.45 = 8,387.34/x
  3. Step 3: Cross multiply
    32,079.84x = 48,122.45 × 8,387.34
  4. Step 4: Simplify right side
    32,079.84x = 403,619,307.85
  5. Step 5: Solve for x
    x = 403,619,307.85/32,079.84
  6. Step 6: Final answer
    x = 12,581.71

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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.