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Finding the Fourth Proportional to 52,653.80, 79,011.90 and 19,397.24

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Solution

The fourth proportional to 52,653.80, 79,011.90 and 19,397.24 is: 29,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,653.80 : 79,011.90 = 19,397.24 : x
  2. Step 2: Convert to fraction form
    52,653.80/79,011.90 = 19,397.24/x
  3. Step 3: Cross multiply
    52,653.80x = 79,011.90 × 19,397.24
  4. Step 4: Simplify right side
    52,653.80x = 1,532,612,787.16
  5. Step 5: Solve for x
    x = 1,532,612,787.16/52,653.80
  6. Step 6: Final answer
    x = 29,107.35

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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.