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Finding the Fourth Proportional to 47,291.52, 70,961.52 and 28,616.16

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Solution

The fourth proportional to 47,291.52, 70,961.52 and 28,616.16 is: 42,938.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,291.52 : 70,961.52 = 28,616.16 : x
  2. Step 2: Convert to fraction form
    47,291.52/70,961.52 = 28,616.16/x
  3. Step 3: Cross multiply
    47,291.52x = 70,961.52 × 28,616.16
  4. Step 4: Simplify right side
    47,291.52x = 2,030,646,210.16
  5. Step 5: Solve for x
    x = 2,030,646,210.16/47,291.52
  6. Step 6: Final answer
    x = 42,938.91

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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.