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Finding the Fourth Proportional to 34,920.78, 51,986.19 and 34,713.15

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Solution

The fourth proportional to 34,920.78, 51,986.19 and 34,713.15 is: 51,677.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,920.78 : 51,986.19 = 34,713.15 : x
  2. Step 2: Convert to fraction form
    34,920.78/51,986.19 = 34,713.15/x
  3. Step 3: Cross multiply
    34,920.78x = 51,986.19 × 34,713.15
  4. Step 4: Simplify right side
    34,920.78x = 1,804,604,411.40
  5. Step 5: Solve for x
    x = 1,804,604,411.40/34,920.78
  6. Step 6: Final answer
    x = 51,677.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.