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Finding the Fourth Proportional to 55,356.35, 83,034.81 and 13,803.35

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Solution

The fourth proportional to 55,356.35, 83,034.81 and 13,803.35 is: 20,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,356.35 : 83,034.81 = 13,803.35 : x
  2. Step 2: Convert to fraction form
    55,356.35/83,034.81 = 13,803.35/x
  3. Step 3: Cross multiply
    55,356.35x = 83,034.81 × 13,803.35
  4. Step 4: Simplify right side
    55,356.35x = 1,146,158,544.61
  5. Step 5: Solve for x
    x = 1,146,158,544.61/55,356.35
  6. Step 6: Final answer
    x = 20,705.10

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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.