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Finding the Fourth Proportional to 77,616.74, 116,421.87 and 22,212.74

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Solution

The fourth proportional to 77,616.74, 116,421.87 and 22,212.74 is: 33,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,616.74 : 116,421.87 = 22,212.74 : x
  2. Step 2: Convert to fraction form
    77,616.74/116,421.87 = 22,212.74/x
  3. Step 3: Cross multiply
    77,616.74x = 116,421.87 × 22,212.74
  4. Step 4: Simplify right side
    77,616.74x = 2,586,048,728.62
  5. Step 5: Solve for x
    x = 2,586,048,728.62/77,616.74
  6. Step 6: Final answer
    x = 33,318.18

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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.