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Finding the Fourth Proportional to 8,498.78, 11,732.58 and 5,313.85

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Solution

The fourth proportional to 8,498.78, 11,732.58 and 5,313.85 is: 7,335.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,498.78 : 11,732.58 = 5,313.85 : x
  2. Step 2: Convert to fraction form
    8,498.78/11,732.58 = 5,313.85/x
  3. Step 3: Cross multiply
    8,498.78x = 11,732.58 × 5,313.85
  4. Step 4: Simplify right side
    8,498.78x = 62,345,111.57
  5. Step 5: Solve for x
    x = 62,345,111.57/8,498.78
  6. Step 6: Final answer
    x = 7,335.77

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Double scale
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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.