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Finding the Fourth Proportional to 55,291.59, 82,937.39 and 13,738.59

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Solution

The fourth proportional to 55,291.59, 82,937.39 and 13,738.59 is: 20,607.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,291.59 : 82,937.39 = 13,738.59 : x
  2. Step 2: Convert to fraction form
    55,291.59/82,937.39 = 13,738.59/x
  3. Step 3: Cross multiply
    55,291.59x = 82,937.39 × 13,738.59
  4. Step 4: Simplify right side
    55,291.59x = 1,139,442,728.19
  5. Step 5: Solve for x
    x = 1,139,442,728.19/55,291.59
  6. Step 6: Final answer
    x = 20,607.89

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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.