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Finding the Fourth Proportional to 75,283.67, 112,962.36 and 53,238.71

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Solution

The fourth proportional to 75,283.67, 112,962.36 and 53,238.71 is: 79,884.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,283.67 : 112,962.36 = 53,238.71 : x
  2. Step 2: Convert to fraction form
    75,283.67/112,962.36 = 53,238.71/x
  3. Step 3: Cross multiply
    75,283.67x = 112,962.36 × 53,238.71
  4. Step 4: Simplify right side
    75,283.67x = 6,013,970,324.96
  5. Step 5: Solve for x
    x = 6,013,970,324.96/75,283.67
  6. Step 6: Final answer
    x = 79,884.13

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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.