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Finding the Fourth Proportional to 52,840.92, 72,920.48 and 28,967.09

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Solution

The fourth proportional to 52,840.92, 72,920.48 and 28,967.09 is: 39,974.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,840.92 : 72,920.48 = 28,967.09 : x
  2. Step 2: Convert to fraction form
    52,840.92/72,920.48 = 28,967.09/x
  3. Step 3: Cross multiply
    52,840.92x = 72,920.48 × 28,967.09
  4. Step 4: Simplify right side
    52,840.92x = 2,112,293,597.57
  5. Step 5: Solve for x
    x = 2,112,293,597.57/52,840.92
  6. Step 6: Final answer
    x = 39,974.58

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1.5x scale

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.