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Finding the Fourth Proportional to 10,901.20, 15,043.20 and 5,933.20

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Solution

The fourth proportional to 10,901.20, 15,043.20 and 5,933.20 is: 8,187.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,901.20 : 15,043.20 = 5,933.20 : x
  2. Step 2: Convert to fraction form
    10,901.20/15,043.20 = 5,933.20/x
  3. Step 3: Cross multiply
    10,901.20x = 15,043.20 × 5,933.20
  4. Step 4: Simplify right side
    10,901.20x = 89,254,314.24
  5. Step 5: Solve for x
    x = 89,254,314.24/10,901.20
  6. Step 6: Final answer
    x = 8,187.57

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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.