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Finding the Fourth Proportional to 18,307.92, 27,418.15 and 15,967.83

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Solution

The fourth proportional to 18,307.92, 27,418.15 and 15,967.83 is: 23,913.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.92 : 27,418.15 = 15,967.83 : x
  2. Step 2: Convert to fraction form
    18,307.92/27,418.15 = 15,967.83/x
  3. Step 3: Cross multiply
    18,307.92x = 27,418.15 × 15,967.83
  4. Step 4: Simplify right side
    18,307.92x = 437,808,391.07
  5. Step 5: Solve for x
    x = 437,808,391.07/18,307.92
  6. Step 6: Final answer
    x = 23,913.60

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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.