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Finding the Fourth Proportional to 34,786.98, 48,006.05 and 19,679.34

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Solution

The fourth proportional to 34,786.98, 48,006.05 and 19,679.34 is: 27,157.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,786.98 : 48,006.05 = 19,679.34 : x
  2. Step 2: Convert to fraction form
    34,786.98/48,006.05 = 19,679.34/x
  3. Step 3: Cross multiply
    34,786.98x = 48,006.05 × 19,679.34
  4. Step 4: Simplify right side
    34,786.98x = 944,727,281.61
  5. Step 5: Solve for x
    x = 944,727,281.61/34,786.98
  6. Step 6: Final answer
    x = 27,157.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.