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Finding the Fourth Proportional to 49,649.54, 74,432.42 and 21,548.42

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Solution

The fourth proportional to 49,649.54, 74,432.42 and 21,548.42 is: 32,304.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,649.54 : 74,432.42 = 21,548.42 : x
  2. Step 2: Convert to fraction form
    49,649.54/74,432.42 = 21,548.42/x
  3. Step 3: Cross multiply
    49,649.54x = 74,432.42 × 21,548.42
  4. Step 4: Simplify right side
    49,649.54x = 1,603,901,047.78
  5. Step 5: Solve for x
    x = 1,603,901,047.78/49,649.54
  6. Step 6: Final answer
    x = 32,304.45

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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.