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Finding the Fourth Proportional to 15,062.03, 20,785.03 and 8,347.48

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Solution

The fourth proportional to 15,062.03, 20,785.03 and 8,347.48 is: 11,519.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,062.03 : 20,785.03 = 8,347.48 : x
  2. Step 2: Convert to fraction form
    15,062.03/20,785.03 = 8,347.48/x
  3. Step 3: Cross multiply
    15,062.03x = 20,785.03 × 8,347.48
  4. Step 4: Simplify right side
    15,062.03x = 173,502,622.22
  5. Step 5: Solve for x
    x = 173,502,622.22/15,062.03
  6. Step 6: Final answer
    x = 11,519.21

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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.