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Finding the Fourth Proportional to 48,900.87, 67,478.54 and 38,853.63

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Solution

The fourth proportional to 48,900.87, 67,478.54 and 38,853.63 is: 53,614.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,900.87 : 67,478.54 = 38,853.63 : x
  2. Step 2: Convert to fraction form
    48,900.87/67,478.54 = 38,853.63/x
  3. Step 3: Cross multiply
    48,900.87x = 67,478.54 × 38,853.63
  4. Step 4: Simplify right side
    48,900.87x = 2,621,786,031.83
  5. Step 5: Solve for x
    x = 2,621,786,031.83/48,900.87
  6. Step 6: Final answer
    x = 53,614.30

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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.