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Finding the Fourth Proportional to 55,371.59, 76,421.54 and 35,207.45

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Solution

The fourth proportional to 55,371.59, 76,421.54 and 35,207.45 is: 48,591.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,371.59 : 76,421.54 = 35,207.45 : x
  2. Step 2: Convert to fraction form
    55,371.59/76,421.54 = 35,207.45/x
  3. Step 3: Cross multiply
    55,371.59x = 76,421.54 × 35,207.45
  4. Step 4: Simplify right side
    55,371.59x = 2,690,607,548.47
  5. Step 5: Solve for x
    x = 2,690,607,548.47/55,371.59
  6. Step 6: Final answer
    x = 48,591.84

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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.