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Finding the Fourth Proportional to 74,592.40, 112,018.20 and 39,600.40

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Solution

The fourth proportional to 74,592.40, 112,018.20 and 39,600.40 is: 59,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,592.40 : 112,018.20 = 39,600.40 : x
  2. Step 2: Convert to fraction form
    74,592.40/112,018.20 = 39,600.40/x
  3. Step 3: Cross multiply
    74,592.40x = 112,018.20 × 39,600.40
  4. Step 4: Simplify right side
    74,592.40x = 4,435,965,527.28
  5. Step 5: Solve for x
    x = 4,435,965,527.28/74,592.40
  6. Step 6: Final answer
    x = 59,469.40

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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.