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Finding the Fourth Proportional to 8,866.36, 12,240.66 and 5,886.28

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Solution

The fourth proportional to 8,866.36, 12,240.66 and 5,886.28 is: 8,126.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.36 : 12,240.66 = 5,886.28 : x
  2. Step 2: Convert to fraction form
    8,866.36/12,240.66 = 5,886.28/x
  3. Step 3: Cross multiply
    8,866.36x = 12,240.66 × 5,886.28
  4. Step 4: Simplify right side
    8,866.36x = 72,051,952.14
  5. Step 5: Solve for x
    x = 72,051,952.14/8,866.36
  6. Step 6: Final answer
    x = 8,126.44

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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.