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Finding the Fourth Proportional to 52,793.46, 72,854.28 and 28,918.68

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Solution

The fourth proportional to 52,793.46, 72,854.28 and 28,918.68 is: 39,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,793.46 : 72,854.28 = 28,918.68 : x
  2. Step 2: Convert to fraction form
    52,793.46/72,854.28 = 28,918.68/x
  3. Step 3: Cross multiply
    52,793.46x = 72,854.28 × 28,918.68
  4. Step 4: Simplify right side
    52,793.46x = 2,106,849,609.95
  5. Step 5: Solve for x
    x = 2,106,849,609.95/52,793.46
  6. Step 6: Final answer
    x = 39,907.40

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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.