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Finding the Fourth Proportional to 28,525.54, 39,366.54 and 15,950.30

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Solution

The fourth proportional to 28,525.54, 39,366.54 and 15,950.30 is: 22,012.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525.54 : 39,366.54 = 15,950.30 : x
  2. Step 2: Convert to fraction form
    28,525.54/39,366.54 = 15,950.30/x
  3. Step 3: Cross multiply
    28,525.54x = 39,366.54 × 15,950.30
  4. Step 4: Simplify right side
    28,525.54x = 627,908,122.96
  5. Step 5: Solve for x
    x = 627,908,122.96/28,525.54
  6. Step 6: Final answer
    x = 22,012.14

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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.