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Finding the Fourth Proportional to 23,345.70, 34,981.02 and 13,963.20

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Solution

The fourth proportional to 23,345.70, 34,981.02 and 13,963.20 is: 20,922.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,345.70 : 34,981.02 = 13,963.20 : x
  2. Step 2: Convert to fraction form
    23,345.70/34,981.02 = 13,963.20/x
  3. Step 3: Cross multiply
    23,345.70x = 34,981.02 × 13,963.20
  4. Step 4: Simplify right side
    23,345.70x = 488,446,978.46
  5. Step 5: Solve for x
    x = 488,446,978.46/23,345.70
  6. Step 6: Final answer
    x = 20,922.35

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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.