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Finding the Fourth Proportional to 6,135.76, 8,472.77 and 4,561.12

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Solution

The fourth proportional to 6,135.76, 8,472.77 and 4,561.12 is: 6,298.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,135.76 : 8,472.77 = 4,561.12 : x
  2. Step 2: Convert to fraction form
    6,135.76/8,472.77 = 4,561.12/x
  3. Step 3: Cross multiply
    6,135.76x = 8,472.77 × 4,561.12
  4. Step 4: Simplify right side
    6,135.76x = 38,645,320.70
  5. Step 5: Solve for x
    x = 38,645,320.70/6,135.76
  6. Step 6: Final answer
    x = 6,298.38

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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.