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Finding the Fourth Proportional to 49,752.66, 68,654.88 and 28,239.87

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Solution

The fourth proportional to 49,752.66, 68,654.88 and 28,239.87 is: 38,968.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,752.66 : 68,654.88 = 28,239.87 : x
  2. Step 2: Convert to fraction form
    49,752.66/68,654.88 = 28,239.87/x
  3. Step 3: Cross multiply
    49,752.66x = 68,654.88 × 28,239.87
  4. Step 4: Simplify right side
    49,752.66x = 1,938,804,886.07
  5. Step 5: Solve for x
    x = 1,938,804,886.07/49,752.66
  6. Step 6: Final answer
    x = 38,968.87

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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.