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Finding the Fourth Proportional to 28,006.92, 38,647.95 and 16,069.14

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Solution

The fourth proportional to 28,006.92, 38,647.95 and 16,069.14 is: 22,174.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006.92 : 38,647.95 = 16,069.14 : x
  2. Step 2: Convert to fraction form
    28,006.92/38,647.95 = 16,069.14/x
  3. Step 3: Cross multiply
    28,006.92x = 38,647.95 × 16,069.14
  4. Step 4: Simplify right side
    28,006.92x = 621,039,319.26
  5. Step 5: Solve for x
    x = 621,039,319.26/28,006.92
  6. Step 6: Final answer
    x = 22,174.50

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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.