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Finding the Fourth Proportional to 69,809.14, 96,333.79 and 37,978.17

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Solution

The fourth proportional to 69,809.14, 96,333.79 and 37,978.17 is: 52,408.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,809.14 : 96,333.79 = 37,978.17 : x
  2. Step 2: Convert to fraction form
    69,809.14/96,333.79 = 37,978.17/x
  3. Step 3: Cross multiply
    69,809.14x = 96,333.79 × 37,978.17
  4. Step 4: Simplify right side
    69,809.14x = 3,658,581,053.36
  5. Step 5: Solve for x
    x = 3,658,581,053.36/69,809.14
  6. Step 6: Final answer
    x = 52,408.34

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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.