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Finding the Fourth Proportional to 52,988.56, 79,790.86 and 38,297.68

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Solution

The fourth proportional to 52,988.56, 79,790.86 and 38,297.68 is: 57,669.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,988.56 : 79,790.86 = 38,297.68 : x
  2. Step 2: Convert to fraction form
    52,988.56/79,790.86 = 38,297.68/x
  3. Step 3: Cross multiply
    52,988.56x = 79,790.86 × 38,297.68
  4. Step 4: Simplify right side
    52,988.56x = 3,055,804,823.20
  5. Step 5: Solve for x
    x = 3,055,804,823.20/52,988.56
  6. Step 6: Final answer
    x = 57,669.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.