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Finding the Fourth Proportional to 12,652.70, 17,443.23 and 10,531.31

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Solution

The fourth proportional to 12,652.70, 17,443.23 and 10,531.31 is: 14,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652.70 : 17,443.23 = 10,531.31 : x
  2. Step 2: Convert to fraction form
    12,652.70/17,443.23 = 10,531.31/x
  3. Step 3: Cross multiply
    12,652.70x = 17,443.23 × 10,531.31
  4. Step 4: Simplify right side
    12,652.70x = 183,700,062.53
  5. Step 5: Solve for x
    x = 183,700,062.53/12,652.70
  6. Step 6: Final answer
    x = 14,518.65

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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.