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Finding the Fourth Proportional to 15,062.63, 20,785.14 and 8,348.00

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Solution

The fourth proportional to 15,062.63, 20,785.14 and 8,348.00 is: 11,519.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,062.63 : 20,785.14 = 8,348.00 : x
  2. Step 2: Convert to fraction form
    15,062.63/20,785.14 = 8,348.00/x
  3. Step 3: Cross multiply
    15,062.63x = 20,785.14 × 8,348.00
  4. Step 4: Simplify right side
    15,062.63x = 173,514,244.79
  5. Step 5: Solve for x
    x = 173,514,244.79/15,062.63
  6. Step 6: Final answer
    x = 11,519.52

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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.