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Finding the Third Proportional to 19,440 and 31,006.13

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Solution

The third proportional to 19,440 and 31,006.13 is: 49,453.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,440 : 31,006.13 = 31,006.13 : x
  2. Step 2: Convert to fraction form
    19,440/31,006.13 = 31,006.13/x
  3. Step 3: Cross multiply
    19,440x = 31,006.13 × 31,006.13
  4. Step 4: Simplify right side
    19,440x = 961,379,787.52
  5. Step 5: Solve for x
    x = 961,379,787.52/19,440
  6. Step 6: Final answer
    x = 49,453.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.