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Finding the Fourth Proportional to 69,719.33, 96,212.40 and 39,510.41

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Solution

The fourth proportional to 69,719.33, 96,212.40 and 39,510.41 is: 54,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,719.33 : 96,212.40 = 39,510.41 : x
  2. Step 2: Convert to fraction form
    69,719.33/96,212.40 = 39,510.41/x
  3. Step 3: Cross multiply
    69,719.33x = 96,212.40 × 39,510.41
  4. Step 4: Simplify right side
    69,719.33x = 3,801,390,741.86
  5. Step 5: Solve for x
    x = 3,801,390,741.86/69,719.33
  6. Step 6: Final answer
    x = 54,524.20

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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.