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Finding the Fourth Proportional to 52,718.84, 72,751.70 and 28,845.08

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Solution

The fourth proportional to 52,718.84, 72,751.70 and 28,845.08 is: 39,806.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,718.84 : 72,751.70 = 28,845.08 : x
  2. Step 2: Convert to fraction form
    52,718.84/72,751.70 = 28,845.08/x
  3. Step 3: Cross multiply
    52,718.84x = 72,751.70 × 28,845.08
  4. Step 4: Simplify right side
    52,718.84x = 2,098,528,606.64
  5. Step 5: Solve for x
    x = 2,098,528,606.64/52,718.84
  6. Step 6: Final answer
    x = 39,806.05

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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.