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Finding the Fourth Proportional to 9,368.12, 12,930.58 and 5,829.22

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Solution

The fourth proportional to 9,368.12, 12,930.58 and 5,829.22 is: 8,045.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.12 : 12,930.58 = 5,829.22 : x
  2. Step 2: Convert to fraction form
    9,368.12/12,930.58 = 5,829.22/x
  3. Step 3: Cross multiply
    9,368.12x = 12,930.58 × 5,829.22
  4. Step 4: Simplify right side
    9,368.12x = 75,375,195.55
  5. Step 5: Solve for x
    x = 75,375,195.55/9,368.12
  6. Step 6: Final answer
    x = 8,045.93

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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.