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Finding the Fourth Proportional to 55,398.39, 83,097.57 and 13,845.39

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Solution

The fourth proportional to 55,398.39, 83,097.57 and 13,845.39 is: 20,768.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,398.39 : 83,097.57 = 13,845.39 : x
  2. Step 2: Convert to fraction form
    55,398.39/83,097.57 = 13,845.39/x
  3. Step 3: Cross multiply
    55,398.39x = 83,097.57 × 13,845.39
  4. Step 4: Simplify right side
    55,398.39x = 1,150,518,264.70
  5. Step 5: Solve for x
    x = 1,150,518,264.70/55,398.39
  6. Step 6: Final answer
    x = 20,768.08

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1.5x scale

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.