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Finding the Fourth Proportional to 28,597.16, 42,922.29 and 20,600.19

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Solution

The fourth proportional to 28,597.16, 42,922.29 and 20,600.19 is: 30,919.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,597.16 : 42,922.29 = 20,600.19 : x
  2. Step 2: Convert to fraction form
    28,597.16/42,922.29 = 20,600.19/x
  3. Step 3: Cross multiply
    28,597.16x = 42,922.29 × 20,600.19
  4. Step 4: Simplify right side
    28,597.16x = 884,207,329.24
  5. Step 5: Solve for x
    x = 884,207,329.24/28,597.16
  6. Step 6: Final answer
    x = 30,919.41

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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.