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Finding the Fourth Proportional to 52,851.84, 79,264.80 and 17,790.72

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Solution

The fourth proportional to 52,851.84, 79,264.80 and 17,790.72 is: 26,681.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,851.84 : 79,264.80 = 17,790.72 : x
  2. Step 2: Convert to fraction form
    52,851.84/79,264.80 = 17,790.72/x
  3. Step 3: Cross multiply
    52,851.84x = 79,264.80 × 17,790.72
  4. Step 4: Simplify right side
    52,851.84x = 1,410,177,862.66
  5. Step 5: Solve for x
    x = 1,410,177,862.66/52,851.84
  6. Step 6: Final answer
    x = 26,681.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.