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Finding the Fourth Proportional to 69,759.40, 104,639.10 and 22,374.40

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Solution

The fourth proportional to 69,759.40, 104,639.10 and 22,374.40 is: 33,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,759.40 : 104,639.10 = 22,374.40 : x
  2. Step 2: Convert to fraction form
    69,759.40/104,639.10 = 22,374.40/x
  3. Step 3: Cross multiply
    69,759.40x = 104,639.10 × 22,374.40
  4. Step 4: Simplify right side
    69,759.40x = 2,341,237,079.04
  5. Step 5: Solve for x
    x = 2,341,237,079.04/69,759.40
  6. Step 6: Final answer
    x = 33,561.60

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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.