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Finding the Fourth Proportional to 15,047.67, 20,772.70 and 10,744.14

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Solution

The fourth proportional to 15,047.67, 20,772.70 and 10,744.14 is: 14,831.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047.67 : 20,772.70 = 10,744.14 : x
  2. Step 2: Convert to fraction form
    15,047.67/20,772.70 = 10,744.14/x
  3. Step 3: Cross multiply
    15,047.67x = 20,772.70 × 10,744.14
  4. Step 4: Simplify right side
    15,047.67x = 223,184,908.45
  5. Step 5: Solve for x
    x = 223,184,908.45/15,047.67
  6. Step 6: Final answer
    x = 14,831.85

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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.