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Finding the Fourth Proportional to 52,724.80, 79,061.60 and 29,326.40

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Solution

The fourth proportional to 52,724.80, 79,061.60 and 29,326.40 is: 43,975.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,724.80 : 79,061.60 = 29,326.40 : x
  2. Step 2: Convert to fraction form
    52,724.80/79,061.60 = 29,326.40/x
  3. Step 3: Cross multiply
    52,724.80x = 79,061.60 × 29,326.40
  4. Step 4: Simplify right side
    52,724.80x = 2,318,592,106.24
  5. Step 5: Solve for x
    x = 2,318,592,106.24/52,724.80
  6. Step 6: Final answer
    x = 43,975.36

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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.