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Finding the Fourth Proportional to 43,948.40, 65,915.84 and 14,366.40

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Solution

The fourth proportional to 43,948.40, 65,915.84 and 14,366.40 is: 21,547.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,948.40 : 65,915.84 = 14,366.40 : x
  2. Step 2: Convert to fraction form
    43,948.40/65,915.84 = 14,366.40/x
  3. Step 3: Cross multiply
    43,948.40x = 65,915.84 × 14,366.40
  4. Step 4: Simplify right side
    43,948.40x = 946,973,323.78
  5. Step 5: Solve for x
    x = 946,973,323.78/43,948.40
  6. Step 6: Final answer
    x = 21,547.39

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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.