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Finding the Fourth Proportional to 48,291.84, 66,648.84 and 28,149.60

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Solution

The fourth proportional to 48,291.84, 66,648.84 and 28,149.60 is: 38,850.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,291.84 : 66,648.84 = 28,149.60 : x
  2. Step 2: Convert to fraction form
    48,291.84/66,648.84 = 28,149.60/x
  3. Step 3: Cross multiply
    48,291.84x = 66,648.84 × 28,149.60
  4. Step 4: Simplify right side
    48,291.84x = 1,876,138,186.46
  5. Step 5: Solve for x
    x = 1,876,138,186.46/48,291.84
  6. Step 6: Final answer
    x = 38,850.00

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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.