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Finding the Fourth Proportional to 17,616.76, 26,429.54 and 12,432.76

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Solution

The fourth proportional to 17,616.76, 26,429.54 and 12,432.76 is: 18,652.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,616.76 : 26,429.54 = 12,432.76 : x
  2. Step 2: Convert to fraction form
    17,616.76/26,429.54 = 12,432.76/x
  3. Step 3: Cross multiply
    17,616.76x = 26,429.54 × 12,432.76
  4. Step 4: Simplify right side
    17,616.76x = 328,592,127.73
  5. Step 5: Solve for x
    x = 328,592,127.73/17,616.76
  6. Step 6: Final answer
    x = 18,652.25

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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.