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Finding the Fourth Proportional to 18,006.16, 26,920.50 and 15,263.50

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Solution

The fourth proportional to 18,006.16, 26,920.50 and 15,263.50 is: 22,820.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,006.16 : 26,920.50 = 15,263.50 : x
  2. Step 2: Convert to fraction form
    18,006.16/26,920.50 = 15,263.50/x
  3. Step 3: Cross multiply
    18,006.16x = 26,920.50 × 15,263.50
  4. Step 4: Simplify right side
    18,006.16x = 410,901,051.75
  5. Step 5: Solve for x
    x = 410,901,051.75/18,006.16
  6. Step 6: Final answer
    x = 22,820.03

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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.