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Finding the Fourth Proportional to 15,960.14, 22,019.00 and 9,243.31

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Solution

The fourth proportional to 15,960.14, 22,019.00 and 9,243.31 is: 12,752.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,960.14 : 22,019.00 = 9,243.31 : x
  2. Step 2: Convert to fraction form
    15,960.14/22,019.00 = 9,243.31/x
  3. Step 3: Cross multiply
    15,960.14x = 22,019.00 × 9,243.31
  4. Step 4: Simplify right side
    15,960.14x = 203,528,396.67
  5. Step 5: Solve for x
    x = 203,528,396.67/15,960.14
  6. Step 6: Final answer
    x = 12,752.30

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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.