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Finding the Fourth Proportional to 19,347.80, 29,021.70 and 9,493.40

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Solution

The fourth proportional to 19,347.80, 29,021.70 and 9,493.40 is: 14,240.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,347.80 : 29,021.70 = 9,493.40 : x
  2. Step 2: Convert to fraction form
    19,347.80/29,021.70 = 9,493.40/x
  3. Step 3: Cross multiply
    19,347.80x = 29,021.70 × 9,493.40
  4. Step 4: Simplify right side
    19,347.80x = 275,514,606.78
  5. Step 5: Solve for x
    x = 275,514,606.78/19,347.80
  6. Step 6: Final answer
    x = 14,240.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.