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Finding the Third Proportional to 52,781.75 and 77,776

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Solution

The third proportional to 52,781.75 and 77,776 is: 114,606.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,781.75 : 77,776 = 77,776 : x
  2. Step 2: Convert to fraction form
    52,781.75/77,776 = 77,776/x
  3. Step 3: Cross multiply
    52,781.75x = 77,776 × 77,776
  4. Step 4: Simplify right side
    52,781.75x = 6,049,106,176
  5. Step 5: Solve for x
    x = 6,049,106,176/52,781.75
  6. Step 6: Final answer
    x = 114,606.02

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.