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Finding the Fourth Proportional to 8,317.67, 12,462.80 and 7,460.28

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Solution

The fourth proportional to 8,317.67, 12,462.80 and 7,460.28 is: 11,178.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317.67 : 12,462.80 = 7,460.28 : x
  2. Step 2: Convert to fraction form
    8,317.67/12,462.80 = 7,460.28/x
  3. Step 3: Cross multiply
    8,317.67x = 12,462.80 × 7,460.28
  4. Step 4: Simplify right side
    8,317.67x = 92,975,940.28
  5. Step 5: Solve for x
    x = 92,975,940.28/8,317.67
  6. Step 6: Final answer
    x = 11,178.13

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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.