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Finding the Fourth Proportional to 70,663.53, 97,511.09 and 40,449.09

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Solution

The fourth proportional to 70,663.53, 97,511.09 and 40,449.09 is: 55,817.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,663.53 : 97,511.09 = 40,449.09 : x
  2. Step 2: Convert to fraction form
    70,663.53/97,511.09 = 40,449.09/x
  3. Step 3: Cross multiply
    70,663.53x = 97,511.09 × 40,449.09
  4. Step 4: Simplify right side
    70,663.53x = 3,944,234,653.16
  5. Step 5: Solve for x
    x = 3,944,234,653.16/70,663.53
  6. Step 6: Final answer
    x = 55,817.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.