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Finding the Fourth Proportional to 28,697.68, 43,042.24 and 15,354.24

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Solution

The fourth proportional to 28,697.68, 43,042.24 and 15,354.24 is: 23,029.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,697.68 : 43,042.24 = 15,354.24 : x
  2. Step 2: Convert to fraction form
    28,697.68/43,042.24 = 15,354.24/x
  3. Step 3: Cross multiply
    28,697.68x = 43,042.24 × 15,354.24
  4. Step 4: Simplify right side
    28,697.68x = 660,880,883.10
  5. Step 5: Solve for x
    x = 660,880,883.10/28,697.68
  6. Step 6: Final answer
    x = 23,029.07

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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.