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Finding the Fourth Proportional to 70,322.88, 105,508.62 and 43,996.26

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Solution

The fourth proportional to 70,322.88, 105,508.62 and 43,996.26 is: 66,009.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,322.88 : 105,508.62 = 43,996.26 : x
  2. Step 2: Convert to fraction form
    70,322.88/105,508.62 = 43,996.26/x
  3. Step 3: Cross multiply
    70,322.88x = 105,508.62 × 43,996.26
  4. Step 4: Simplify right side
    70,322.88x = 4,641,984,677.76
  5. Step 5: Solve for x
    x = 4,641,984,677.76/70,322.88
  6. Step 6: Final answer
    x = 66,009.59

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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.