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Finding the Fourth Proportional to 77,895.96, 116,852.12 and 38,415.12

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Solution

The fourth proportional to 77,895.96, 116,852.12 and 38,415.12 is: 57,626.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,895.96 : 116,852.12 = 38,415.12 : x
  2. Step 2: Convert to fraction form
    77,895.96/116,852.12 = 38,415.12/x
  3. Step 3: Cross multiply
    77,895.96x = 116,852.12 × 38,415.12
  4. Step 4: Simplify right side
    77,895.96x = 4,488,888,212.05
  5. Step 5: Solve for x
    x = 4,488,888,212.05/77,895.96
  6. Step 6: Final answer
    x = 57,626.71

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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.