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Finding the Third Proportional to 15,875.50 and 25,117

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Solution

The third proportional to 15,875.50 and 25,117 is: 39,738.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,875.50 : 25,117 = 25,117 : x
  2. Step 2: Convert to fraction form
    15,875.50/25,117 = 25,117/x
  3. Step 3: Cross multiply
    15,875.50x = 25,117 × 25,117
  4. Step 4: Simplify right side
    15,875.50x = 630,863,689
  5. Step 5: Solve for x
    x = 630,863,689/15,875.50
  6. Step 6: Final answer
    x = 39,738.19

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.