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Finding the Fourth Proportional to 40,978.80, 56,552.85 and 25,058.26

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Solution

The fourth proportional to 40,978.80, 56,552.85 and 25,058.26 is: 34,581.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,978.80 : 56,552.85 = 25,058.26 : x
  2. Step 2: Convert to fraction form
    40,978.80/56,552.85 = 25,058.26/x
  3. Step 3: Cross multiply
    40,978.80x = 56,552.85 × 25,058.26
  4. Step 4: Simplify right side
    40,978.80x = 1,417,116,019.04
  5. Step 5: Solve for x
    x = 1,417,116,019.04/40,978.80
  6. Step 6: Final answer
    x = 34,581.69

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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.