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Finding the Fourth Proportional to 49,619.60, 74,409.60 and 16,330.40

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Solution

The fourth proportional to 49,619.60, 74,409.60 and 16,330.40 is: 24,489.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,619.60 : 74,409.60 = 16,330.40 : x
  2. Step 2: Convert to fraction form
    49,619.60/74,409.60 = 16,330.40/x
  3. Step 3: Cross multiply
    49,619.60x = 74,409.60 × 16,330.40
  4. Step 4: Simplify right side
    49,619.60x = 1,215,138,531.84
  5. Step 5: Solve for x
    x = 1,215,138,531.84/49,619.60
  6. Step 6: Final answer
    x = 24,489.08

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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.