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Finding the Fourth Proportional to 22,700.78, 34,083.06 and 11,615.42

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Solution

The fourth proportional to 22,700.78, 34,083.06 and 11,615.42 is: 17,439.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,700.78 : 34,083.06 = 11,615.42 : x
  2. Step 2: Convert to fraction form
    22,700.78/34,083.06 = 11,615.42/x
  3. Step 3: Cross multiply
    22,700.78x = 34,083.06 × 11,615.42
  4. Step 4: Simplify right side
    22,700.78x = 395,889,056.79
  5. Step 5: Solve for x
    x = 395,889,056.79/22,700.78
  6. Step 6: Final answer
    x = 17,439.45

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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.