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Finding the Fourth Proportional to 55,356.79, 83,019.81 and 15,366.58

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Solution

The fourth proportional to 55,356.79, 83,019.81 and 15,366.58 is: 23,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,356.79 : 83,019.81 = 15,366.58 : x
  2. Step 2: Convert to fraction form
    55,356.79/83,019.81 = 15,366.58/x
  3. Step 3: Cross multiply
    55,356.79x = 83,019.81 × 15,366.58
  4. Step 4: Simplify right side
    55,356.79x = 1,275,730,551.95
  5. Step 5: Solve for x
    x = 1,275,730,551.95/55,356.79
  6. Step 6: Final answer
    x = 23,045.60

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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.