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Finding the Fourth Proportional to 12,710.52, 19,065.78 and 3,476.52

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Solution

The fourth proportional to 12,710.52, 19,065.78 and 3,476.52 is: 5,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710.52 : 19,065.78 = 3,476.52 : x
  2. Step 2: Convert to fraction form
    12,710.52/19,065.78 = 3,476.52/x
  3. Step 3: Cross multiply
    12,710.52x = 19,065.78 × 3,476.52
  4. Step 4: Simplify right side
    12,710.52x = 66,282,565.49
  5. Step 5: Solve for x
    x = 66,282,565.49/12,710.52
  6. Step 6: Final answer
    x = 5,214.78

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1.5x scale

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.