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Finding the Fourth Proportional to 52,323.97, 78,485.96 and 15,387.97

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Solution

The fourth proportional to 52,323.97, 78,485.96 and 15,387.97 is: 23,081.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,323.97 : 78,485.96 = 15,387.97 : x
  2. Step 2: Convert to fraction form
    52,323.97/78,485.96 = 15,387.97/x
  3. Step 3: Cross multiply
    52,323.97x = 78,485.96 × 15,387.97
  4. Step 4: Simplify right side
    52,323.97x = 1,207,739,520.96
  5. Step 5: Solve for x
    x = 1,207,739,520.96/52,323.97
  6. Step 6: Final answer
    x = 23,081.96

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1.5x scale

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.