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Finding the Fourth Proportional to 52,620.22, 72,616.16 and 28,747.29

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Solution

The fourth proportional to 52,620.22, 72,616.16 and 28,747.29 is: 39,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,620.22 : 72,616.16 = 28,747.29 : x
  2. Step 2: Convert to fraction form
    52,620.22/72,616.16 = 28,747.29/x
  3. Step 3: Cross multiply
    52,620.22x = 72,616.16 × 28,747.29
  4. Step 4: Simplify right side
    52,620.22x = 2,087,517,810.21
  5. Step 5: Solve for x
    x = 2,087,517,810.21/52,620.22
  6. Step 6: Final answer
    x = 39,671.40

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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.