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Finding the Third Proportional to 53,416.50 and 77,368.75

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Solution

The third proportional to 53,416.50 and 77,368.75 is: 112,061.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,416.50 : 77,368.75 = 77,368.75 : x
  2. Step 2: Convert to fraction form
    53,416.50/77,368.75 = 77,368.75/x
  3. Step 3: Cross multiply
    53,416.50x = 77,368.75 × 77,368.75
  4. Step 4: Simplify right side
    53,416.50x = 5,985,923,476.56
  5. Step 5: Solve for x
    x = 5,985,923,476.56/53,416.50
  6. Step 6: Final answer
    x = 112,061.32

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.