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Finding the Fourth Proportional to 8,649.47, 11,926.76 and 6,254.71

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Solution

The fourth proportional to 8,649.47, 11,926.76 and 6,254.71 is: 8,624.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.47 : 11,926.76 = 6,254.71 : x
  2. Step 2: Convert to fraction form
    8,649.47/11,926.76 = 6,254.71/x
  3. Step 3: Cross multiply
    8,649.47x = 11,926.76 × 6,254.71
  4. Step 4: Simplify right side
    8,649.47x = 74,598,363.95
  5. Step 5: Solve for x
    x = 74,598,363.95/8,649.47
  6. Step 6: Final answer
    x = 8,624.61

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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.