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Finding the Fourth Proportional to 52,861.50, 72,948.24 and 28,987.97

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Solution

The fourth proportional to 52,861.50, 72,948.24 and 28,987.97 is: 40,003.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,861.50 : 72,948.24 = 28,987.97 : x
  2. Step 2: Convert to fraction form
    52,861.50/72,948.24 = 28,987.97/x
  3. Step 3: Cross multiply
    52,861.50x = 72,948.24 × 28,987.97
  4. Step 4: Simplify right side
    52,861.50x = 2,114,621,027.93
  5. Step 5: Solve for x
    x = 2,114,621,027.93/52,861.50
  6. Step 6: Final answer
    x = 40,003.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.