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Finding the Fourth Proportional to 18,007.16, 26,922 and 15,264.50

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Solution

The fourth proportional to 18,007.16, 26,922 and 15,264.50 is: 22,821.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.16 : 26,922 = 15,264.50 : x
  2. Step 2: Convert to fraction form
    18,007.16/26,922 = 15,264.50/x
  3. Step 3: Cross multiply
    18,007.16x = 26,922 × 15,264.50
  4. Step 4: Simplify right side
    18,007.16x = 410,950,869
  5. Step 5: Solve for x
    x = 410,950,869/18,007.16
  6. Step 6: Final answer
    x = 22,821.53

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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.