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Finding the Fourth Proportional to 62,419.40, 93,434.70 and 36,045.80

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Solution

The fourth proportional to 62,419.40, 93,434.70 and 36,045.80 is: 53,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,419.40 : 93,434.70 = 36,045.80 : x
  2. Step 2: Convert to fraction form
    62,419.40/93,434.70 = 36,045.80/x
  3. Step 3: Cross multiply
    62,419.40x = 93,434.70 × 36,045.80
  4. Step 4: Simplify right side
    62,419.40x = 3,367,928,509.26
  5. Step 5: Solve for x
    x = 3,367,928,509.26/62,419.40
  6. Step 6: Final answer
    x = 53,956.44

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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.