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Finding the Fourth Proportional to 8,317.02, 12,478.02 and 5,356.74

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Solution

The fourth proportional to 8,317.02, 12,478.02 and 5,356.74 is: 8,036.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317.02 : 12,478.02 = 5,356.74 : x
  2. Step 2: Convert to fraction form
    8,317.02/12,478.02 = 5,356.74/x
  3. Step 3: Cross multiply
    8,317.02x = 12,478.02 × 5,356.74
  4. Step 4: Simplify right side
    8,317.02x = 66,841,508.85
  5. Step 5: Solve for x
    x = 66,841,508.85/8,317.02
  6. Step 6: Final answer
    x = 8,036.71

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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.