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Finding the Fourth Proportional to 8,866.95, 12,236.13 and 5,723.16

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Solution

The fourth proportional to 8,866.95, 12,236.13 and 5,723.16 is: 7,897.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.95 : 12,236.13 = 5,723.16 : x
  2. Step 2: Convert to fraction form
    8,866.95/12,236.13 = 5,723.16/x
  3. Step 3: Cross multiply
    8,866.95x = 12,236.13 × 5,723.16
  4. Step 4: Simplify right side
    8,866.95x = 70,029,329.77
  5. Step 5: Solve for x
    x = 70,029,329.77/8,866.95
  6. Step 6: Final answer
    x = 7,897.79

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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.