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Finding the Fourth Proportional to 35,461.95, 48,923.77 and 20,349.15

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Solution

The fourth proportional to 35,461.95, 48,923.77 and 20,349.15 is: 28,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,461.95 : 48,923.77 = 20,349.15 : x
  2. Step 2: Convert to fraction form
    35,461.95/48,923.77 = 20,349.15/x
  3. Step 3: Cross multiply
    35,461.95x = 48,923.77 × 20,349.15
  4. Step 4: Simplify right side
    35,461.95x = 995,557,134.30
  5. Step 5: Solve for x
    x = 995,557,134.30/35,461.95
  6. Step 6: Final answer
    x = 28,073.95

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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.