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Finding the Fourth Proportional to 48,728.29, 67,246.15 and 28,599.69

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Solution

The fourth proportional to 48,728.29, 67,246.15 and 28,599.69 is: 39,468.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,728.29 : 67,246.15 = 28,599.69 : x
  2. Step 2: Convert to fraction form
    48,728.29/67,246.15 = 28,599.69/x
  3. Step 3: Cross multiply
    48,728.29x = 67,246.15 × 28,599.69
  4. Step 4: Simplify right side
    48,728.29x = 1,923,219,043.69
  5. Step 5: Solve for x
    x = 1,923,219,043.69/48,728.29
  6. Step 6: Final answer
    x = 39,468.22

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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.