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Finding the Fourth Proportional to 53,292.80, 79,900.80 and 29,926.40

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Solution

The fourth proportional to 53,292.80, 79,900.80 and 29,926.40 is: 44,868.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,292.80 : 79,900.80 = 29,926.40 : x
  2. Step 2: Convert to fraction form
    53,292.80/79,900.80 = 29,926.40/x
  3. Step 3: Cross multiply
    53,292.80x = 79,900.80 × 29,926.40
  4. Step 4: Simplify right side
    53,292.80x = 2,391,143,301.12
  5. Step 5: Solve for x
    x = 2,391,143,301.12/53,292.80
  6. Step 6: Final answer
    x = 44,868.04

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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.