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Finding the Fourth Proportional to 8,930.42, 13,367.55 and 8,053.46

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Solution

The fourth proportional to 8,930.42, 13,367.55 and 8,053.46 is: 12,054.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.42 : 13,367.55 = 8,053.46 : x
  2. Step 2: Convert to fraction form
    8,930.42/13,367.55 = 8,053.46/x
  3. Step 3: Cross multiply
    8,930.42x = 13,367.55 × 8,053.46
  4. Step 4: Simplify right side
    8,930.42x = 107,655,029.22
  5. Step 5: Solve for x
    x = 107,655,029.22/8,930.42
  6. Step 6: Final answer
    x = 12,054.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.