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Finding the Fourth Proportional to 19,648.36, 29,472.62 and 9,799.88

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Solution

The fourth proportional to 19,648.36, 29,472.62 and 9,799.88 is: 14,699.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,648.36 : 29,472.62 = 9,799.88 : x
  2. Step 2: Convert to fraction form
    19,648.36/29,472.62 = 9,799.88/x
  3. Step 3: Cross multiply
    19,648.36x = 29,472.62 × 9,799.88
  4. Step 4: Simplify right side
    19,648.36x = 288,828,139.29
  5. Step 5: Solve for x
    x = 288,828,139.29/19,648.36
  6. Step 6: Final answer
    x = 14,699.86

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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.