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Finding the Fourth Proportional to 56,433.52, 77,895.84 and 34,930.72

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Solution

The fourth proportional to 56,433.52, 77,895.84 and 34,930.72 is: 48,215.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,433.52 : 77,895.84 = 34,930.72 : x
  2. Step 2: Convert to fraction form
    56,433.52/77,895.84 = 34,930.72/x
  3. Step 3: Cross multiply
    56,433.52x = 77,895.84 × 34,930.72
  4. Step 4: Simplify right side
    56,433.52x = 2,720,957,776.20
  5. Step 5: Solve for x
    x = 2,720,957,776.20/56,433.52
  6. Step 6: Final answer
    x = 48,215.28

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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.