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Finding the Fourth Proportional to 9,017.50, 12,470.07 and 8,604.94

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Solution

The fourth proportional to 9,017.50, 12,470.07 and 8,604.94 is: 11,899.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,017.50 : 12,470.07 = 8,604.94 : x
  2. Step 2: Convert to fraction form
    9,017.50/12,470.07 = 8,604.94/x
  3. Step 3: Cross multiply
    9,017.50x = 12,470.07 × 8,604.94
  4. Step 4: Simplify right side
    9,017.50x = 107,304,204.15
  5. Step 5: Solve for x
    x = 107,304,204.15/9,017.50
  6. Step 6: Final answer
    x = 11,899.55

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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.