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Finding the Fourth Proportional to 69,930.56, 96,511.14 and 42,705.14

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Solution

The fourth proportional to 69,930.56, 96,511.14 and 42,705.14 is: 58,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,930.56 : 96,511.14 = 42,705.14 : x
  2. Step 2: Convert to fraction form
    69,930.56/96,511.14 = 42,705.14/x
  3. Step 3: Cross multiply
    69,930.56x = 96,511.14 × 42,705.14
  4. Step 4: Simplify right side
    69,930.56x = 4,121,521,745.26
  5. Step 5: Solve for x
    x = 4,121,521,745.26/69,930.56
  6. Step 6: Final answer
    x = 58,937.35

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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.