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Finding the Fourth Proportional to 23,643.40, 35,456.70 and 10,472.20

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Solution

The fourth proportional to 23,643.40, 35,456.70 and 10,472.20 is: 15,704.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,643.40 : 35,456.70 = 10,472.20 : x
  2. Step 2: Convert to fraction form
    23,643.40/35,456.70 = 10,472.20/x
  3. Step 3: Cross multiply
    23,643.40x = 35,456.70 × 10,472.20
  4. Step 4: Simplify right side
    23,643.40x = 371,309,653.74
  5. Step 5: Solve for x
    x = 371,309,653.74/23,643.40
  6. Step 6: Final answer
    x = 15,704.58

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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.