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Finding the Fourth Proportional to 8,881.58, 12,256.11 and 5,104.15

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Solution

The fourth proportional to 8,881.58, 12,256.11 and 5,104.15 is: 7,043.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.58 : 12,256.11 = 5,104.15 : x
  2. Step 2: Convert to fraction form
    8,881.58/12,256.11 = 5,104.15/x
  3. Step 3: Cross multiply
    8,881.58x = 12,256.11 × 5,104.15
  4. Step 4: Simplify right side
    8,881.58x = 62,556,993.22
  5. Step 5: Solve for x
    x = 62,556,993.22/8,881.58
  6. Step 6: Final answer
    x = 7,043.45

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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.