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Finding the Fourth Proportional to 19,754.67, 29,650.54 and 10,401.60

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Solution

The fourth proportional to 19,754.67, 29,650.54 and 10,401.60 is: 15,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,754.67 : 29,650.54 = 10,401.60 : x
  2. Step 2: Convert to fraction form
    19,754.67/29,650.54 = 10,401.60/x
  3. Step 3: Cross multiply
    19,754.67x = 29,650.54 × 10,401.60
  4. Step 4: Simplify right side
    19,754.67x = 308,413,056.86
  5. Step 5: Solve for x
    x = 308,413,056.86/19,754.67
  6. Step 6: Final answer
    x = 15,612.16

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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.