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Finding the Fourth Proportional to 9,363.06, 12,938.13 and 8,907.48

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Solution

The fourth proportional to 9,363.06, 12,938.13 and 8,907.48 is: 12,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.06 : 12,938.13 = 8,907.48 : x
  2. Step 2: Convert to fraction form
    9,363.06/12,938.13 = 8,907.48/x
  3. Step 3: Cross multiply
    9,363.06x = 12,938.13 × 8,907.48
  4. Step 4: Simplify right side
    9,363.06x = 115,246,134.21
  5. Step 5: Solve for x
    x = 115,246,134.21/9,363.06
  6. Step 6: Final answer
    x = 12,308.60

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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.