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Finding the Fourth Proportional to 35,120.84, 52,686.51 and 12,932.51

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Solution

The fourth proportional to 35,120.84, 52,686.51 and 12,932.51 is: 19,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,120.84 : 52,686.51 = 12,932.51 : x
  2. Step 2: Convert to fraction form
    35,120.84/52,686.51 = 12,932.51/x
  3. Step 3: Cross multiply
    35,120.84x = 52,686.51 × 12,932.51
  4. Step 4: Simplify right side
    35,120.84x = 681,368,817.44
  5. Step 5: Solve for x
    x = 681,368,817.44/35,120.84
  6. Step 6: Final answer
    x = 19,400.70

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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.