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Finding the Fourth Proportional to 55,969.76, 77,262.48 and 40,026.56

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Solution

The fourth proportional to 55,969.76, 77,262.48 and 40,026.56 is: 55,253.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,969.76 : 77,262.48 = 40,026.56 : x
  2. Step 2: Convert to fraction form
    55,969.76/77,262.48 = 40,026.56/x
  3. Step 3: Cross multiply
    55,969.76x = 77,262.48 × 40,026.56
  4. Step 4: Simplify right side
    55,969.76x = 3,092,551,291.47
  5. Step 5: Solve for x
    x = 3,092,551,291.47/55,969.76
  6. Step 6: Final answer
    x = 55,253.97

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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.