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Finding the Fourth Proportional to 48,508.98, 66,917.90 and 28,352.68

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Solution

The fourth proportional to 48,508.98, 66,917.90 and 28,352.68 is: 39,112.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,508.98 : 66,917.90 = 28,352.68 : x
  2. Step 2: Convert to fraction form
    48,508.98/66,917.90 = 28,352.68/x
  3. Step 3: Cross multiply
    48,508.98x = 66,917.90 × 28,352.68
  4. Step 4: Simplify right side
    48,508.98x = 1,897,301,925.49
  5. Step 5: Solve for x
    x = 1,897,301,925.49/48,508.98
  6. Step 6: Final answer
    x = 39,112.39

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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.