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Finding the Fourth Proportional to 65,716.40, 98,623.20 and 26,301.80

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Solution

The fourth proportional to 65,716.40, 98,623.20 and 26,301.80 is: 39,472.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,716.40 : 98,623.20 = 26,301.80 : x
  2. Step 2: Convert to fraction form
    65,716.40/98,623.20 = 26,301.80/x
  3. Step 3: Cross multiply
    65,716.40x = 98,623.20 × 26,301.80
  4. Step 4: Simplify right side
    65,716.40x = 2,593,967,681.76
  5. Step 5: Solve for x
    x = 2,593,967,681.76/65,716.40
  6. Step 6: Final answer
    x = 39,472.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.