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Finding the Fourth Proportional to 9,363.10, 12,910.58 and 7,656.30

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Solution

The fourth proportional to 9,363.10, 12,910.58 and 7,656.30 is: 10,557.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.10 : 12,910.58 = 7,656.30 : x
  2. Step 2: Convert to fraction form
    9,363.10/12,910.58 = 7,656.30/x
  3. Step 3: Cross multiply
    9,363.10x = 12,910.58 × 7,656.30
  4. Step 4: Simplify right side
    9,363.10x = 98,847,273.65
  5. Step 5: Solve for x
    x = 98,847,273.65/9,363.10
  6. Step 6: Final answer
    x = 10,557.11

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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.