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Finding the Fourth Proportional to 40,359, 55,695.48 and 22,695

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Solution

The fourth proportional to 40,359, 55,695.48 and 22,695 is: 31,319.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,359 : 55,695.48 = 22,695 : x
  2. Step 2: Convert to fraction form
    40,359/55,695.48 = 22,695/x
  3. Step 3: Cross multiply
    40,359x = 55,695.48 × 22,695
  4. Step 4: Simplify right side
    40,359x = 1,264,008,918.60
  5. Step 5: Solve for x
    x = 1,264,008,918.60/40,359
  6. Step 6: Final answer
    x = 31,319.13

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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.