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Finding the Fourth Proportional to 14,839.61, 20,479.65 and 8,552.39

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Solution

The fourth proportional to 14,839.61, 20,479.65 and 8,552.39 is: 11,802.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,839.61 : 20,479.65 = 8,552.39 : x
  2. Step 2: Convert to fraction form
    14,839.61/20,479.65 = 8,552.39/x
  3. Step 3: Cross multiply
    14,839.61x = 20,479.65 × 8,552.39
  4. Step 4: Simplify right side
    14,839.61x = 175,149,953.86
  5. Step 5: Solve for x
    x = 175,149,953.86/14,839.61
  6. Step 6: Final answer
    x = 11,802.87

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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.