Home / 32,085.72-48,129.12-8,711.55

Finding the Fourth Proportional to 32,085.72, 48,129.12 and 8,711.55

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Solution

The fourth proportional to 32,085.72, 48,129.12 and 8,711.55 is: 13,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,085.72 : 48,129.12 = 8,711.55 : x
  2. Step 2: Convert to fraction form
    32,085.72/48,129.12 = 8,711.55/x
  3. Step 3: Cross multiply
    32,085.72x = 48,129.12 × 8,711.55
  4. Step 4: Simplify right side
    32,085.72x = 419,279,235.34
  5. Step 5: Solve for x
    x = 419,279,235.34/32,085.72
  6. Step 6: Final answer
    x = 13,067.47

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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.