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Finding the Fourth Proportional to 11,045.40, 15,240.15 and 8,062.86

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Solution

The fourth proportional to 11,045.40, 15,240.15 and 8,062.86 is: 11,124.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,045.40 : 15,240.15 = 8,062.86 : x
  2. Step 2: Convert to fraction form
    11,045.40/15,240.15 = 8,062.86/x
  3. Step 3: Cross multiply
    11,045.40x = 15,240.15 × 8,062.86
  4. Step 4: Simplify right side
    11,045.40x = 122,879,195.83
  5. Step 5: Solve for x
    x = 122,879,195.83/11,045.40
  6. Step 6: Final answer
    x = 11,124.92

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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.