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Finding the Fourth Proportional to 8,888.93, 12,266.22 and 5,531.64

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Solution

The fourth proportional to 8,888.93, 12,266.22 and 5,531.64 is: 7,633.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.93 : 12,266.22 = 5,531.64 : x
  2. Step 2: Convert to fraction form
    8,888.93/12,266.22 = 5,531.64/x
  3. Step 3: Cross multiply
    8,888.93x = 12,266.22 × 5,531.64
  4. Step 4: Simplify right side
    8,888.93x = 67,852,251.87
  5. Step 5: Solve for x
    x = 67,852,251.87/8,888.93
  6. Step 6: Final answer
    x = 7,633.35

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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.