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Finding the Fourth Proportional to 22,006.50, 30,368.97 and 12,070.50

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Solution

The fourth proportional to 22,006.50, 30,368.97 and 12,070.50 is: 16,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,006.50 : 30,368.97 = 12,070.50 : x
  2. Step 2: Convert to fraction form
    22,006.50/30,368.97 = 12,070.50/x
  3. Step 3: Cross multiply
    22,006.50x = 30,368.97 × 12,070.50
  4. Step 4: Simplify right side
    22,006.50x = 366,568,652.39
  5. Step 5: Solve for x
    x = 366,568,652.39/22,006.50
  6. Step 6: Final answer
    x = 16,657.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.