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Finding the Fourth Proportional to 78,636.56, 117,935.01 and 22,476.96

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Solution

The fourth proportional to 78,636.56, 117,935.01 and 22,476.96 is: 33,709.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,636.56 : 117,935.01 = 22,476.96 : x
  2. Step 2: Convert to fraction form
    78,636.56/117,935.01 = 22,476.96/x
  3. Step 3: Cross multiply
    78,636.56x = 117,935.01 × 22,476.96
  4. Step 4: Simplify right side
    78,636.56x = 2,650,820,502.37
  5. Step 5: Solve for x
    x = 2,650,820,502.37/78,636.56
  6. Step 6: Final answer
    x = 33,709.77

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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.