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Finding the Fourth Proportional to 23,749.73, 32,780.11 and 15,684.99

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Solution

The fourth proportional to 23,749.73, 32,780.11 and 15,684.99 is: 21,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,749.73 : 32,780.11 = 15,684.99 : x
  2. Step 2: Convert to fraction form
    23,749.73/32,780.11 = 15,684.99/x
  3. Step 3: Cross multiply
    23,749.73x = 32,780.11 × 15,684.99
  4. Step 4: Simplify right side
    23,749.73x = 514,155,455.22
  5. Step 5: Solve for x
    x = 514,155,455.22/23,749.73
  6. Step 6: Final answer
    x = 21,648.90

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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.