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Finding the Fourth Proportional to 36,315.76, 54,472.22 and 10,019.78

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Solution

The fourth proportional to 36,315.76, 54,472.22 and 10,019.78 is: 15,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,315.76 : 54,472.22 = 10,019.78 : x
  2. Step 2: Convert to fraction form
    36,315.76/54,472.22 = 10,019.78/x
  3. Step 3: Cross multiply
    36,315.76x = 54,472.22 × 10,019.78
  4. Step 4: Simplify right side
    36,315.76x = 545,799,660.51
  5. Step 5: Solve for x
    x = 545,799,660.51/36,315.76
  6. Step 6: Final answer
    x = 15,029.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.