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Finding the Fourth Proportional to 52,718.60, 72,751.62 and 28,845.37

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Solution

The fourth proportional to 52,718.60, 72,751.62 and 28,845.37 is: 39,806.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,718.60 : 72,751.62 = 28,845.37 : x
  2. Step 2: Convert to fraction form
    52,718.60/72,751.62 = 28,845.37/x
  3. Step 3: Cross multiply
    52,718.60x = 72,751.62 × 28,845.37
  4. Step 4: Simplify right side
    52,718.60x = 2,098,547,397.00
  5. Step 5: Solve for x
    x = 2,098,547,397.00/52,718.60
  6. Step 6: Final answer
    x = 39,806.58

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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.