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Finding the Fourth Proportional to 40,484.70, 60,683.85 and 15,515.10

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Solution

The fourth proportional to 40,484.70, 60,683.85 and 15,515.10 is: 23,256.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,484.70 : 60,683.85 = 15,515.10 : x
  2. Step 2: Convert to fraction form
    40,484.70/60,683.85 = 15,515.10/x
  3. Step 3: Cross multiply
    40,484.70x = 60,683.85 × 15,515.10
  4. Step 4: Simplify right side
    40,484.70x = 941,516,001.14
  5. Step 5: Solve for x
    x = 941,516,001.14/40,484.70
  6. Step 6: Final answer
    x = 23,256.09

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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.