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Finding the Fourth Proportional to 15,943.52, 23,915.04 and 7,172.24

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Solution

The fourth proportional to 15,943.52, 23,915.04 and 7,172.24 is: 10,758.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.52 : 23,915.04 = 7,172.24 : x
  2. Step 2: Convert to fraction form
    15,943.52/23,915.04 = 7,172.24/x
  3. Step 3: Cross multiply
    15,943.52x = 23,915.04 × 7,172.24
  4. Step 4: Simplify right side
    15,943.52x = 171,524,406.49
  5. Step 5: Solve for x
    x = 171,524,406.49/15,943.52
  6. Step 6: Final answer
    x = 10,758.25

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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.