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Finding the Fourth Proportional to 34,867.71, 52,323.84 and 12,678.98

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Solution

The fourth proportional to 34,867.71, 52,323.84 and 12,678.98 is: 19,026.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,867.71 : 52,323.84 = 12,678.98 : x
  2. Step 2: Convert to fraction form
    34,867.71/52,323.84 = 12,678.98/x
  3. Step 3: Cross multiply
    34,867.71x = 52,323.84 × 12,678.98
  4. Step 4: Simplify right side
    34,867.71x = 663,412,659.26
  5. Step 5: Solve for x
    x = 663,412,659.26/34,867.71
  6. Step 6: Final answer
    x = 19,026.56

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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.