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Finding the Fourth Proportional to 48,503.16, 66,935.34 and 28,375.44

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Solution

The fourth proportional to 48,503.16, 66,935.34 and 28,375.44 is: 39,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,503.16 : 66,935.34 = 28,375.44 : x
  2. Step 2: Convert to fraction form
    48,503.16/66,935.34 = 28,375.44/x
  3. Step 3: Cross multiply
    48,503.16x = 66,935.34 × 28,375.44
  4. Step 4: Simplify right side
    48,503.16x = 1,899,319,724.05
  5. Step 5: Solve for x
    x = 1,899,319,724.05/48,503.16
  6. Step 6: Final answer
    x = 39,158.68

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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.