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Finding the Fourth Proportional to 8,886.78, 12,263.94 and 5,349.24

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Solution

The fourth proportional to 8,886.78, 12,263.94 and 5,349.24 is: 7,382.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.78 : 12,263.94 = 5,349.24 : x
  2. Step 2: Convert to fraction form
    8,886.78/12,263.94 = 5,349.24/x
  3. Step 3: Cross multiply
    8,886.78x = 12,263.94 × 5,349.24
  4. Step 4: Simplify right side
    8,886.78x = 65,602,758.41
  5. Step 5: Solve for x
    x = 65,602,758.41/8,886.78
  6. Step 6: Final answer
    x = 7,382.06

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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.