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Finding the Fourth Proportional to 50,841.85, 70,165.95 and 28,187.95

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Solution

The fourth proportional to 50,841.85, 70,165.95 and 28,187.95 is: 38,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,841.85 : 70,165.95 = 28,187.95 : x
  2. Step 2: Convert to fraction form
    50,841.85/70,165.95 = 28,187.95/x
  3. Step 3: Cross multiply
    50,841.85x = 70,165.95 × 28,187.95
  4. Step 4: Simplify right side
    50,841.85x = 1,977,834,290.30
  5. Step 5: Solve for x
    x = 1,977,834,290.30/50,841.85
  6. Step 6: Final answer
    x = 38,901.70

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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.