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Finding the Fourth Proportional to 34,364.40, 51,551.40 and 14,642.80

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Solution

The fourth proportional to 34,364.40, 51,551.40 and 14,642.80 is: 21,966.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,364.40 : 51,551.40 = 14,642.80 : x
  2. Step 2: Convert to fraction form
    34,364.40/51,551.40 = 14,642.80/x
  3. Step 3: Cross multiply
    34,364.40x = 51,551.40 × 14,642.80
  4. Step 4: Simplify right side
    34,364.40x = 754,856,839.92
  5. Step 5: Solve for x
    x = 754,856,839.92/34,364.40
  6. Step 6: Final answer
    x = 21,966.25

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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.