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Finding the Fourth Proportional to 8,424.59, 12,641.43 and 3,497.63

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Solution

The fourth proportional to 8,424.59, 12,641.43 and 3,497.63 is: 5,248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.59 : 12,641.43 = 3,497.63 : x
  2. Step 2: Convert to fraction form
    8,424.59/12,641.43 = 3,497.63/x
  3. Step 3: Cross multiply
    8,424.59x = 12,641.43 × 3,497.63
  4. Step 4: Simplify right side
    8,424.59x = 44,214,981.60
  5. Step 5: Solve for x
    x = 44,214,981.60/8,424.59
  6. Step 6: Final answer
    x = 5,248.33

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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.