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Finding the Fourth Proportional to 77,409.48, 116,115.30 and 22,005.48

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Solution

The fourth proportional to 77,409.48, 116,115.30 and 22,005.48 is: 33,008.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,409.48 : 116,115.30 = 22,005.48 : x
  2. Step 2: Convert to fraction form
    77,409.48/116,115.30 = 22,005.48/x
  3. Step 3: Cross multiply
    77,409.48x = 116,115.30 × 22,005.48
  4. Step 4: Simplify right side
    77,409.48x = 2,555,172,911.84
  5. Step 5: Solve for x
    x = 2,555,172,911.84/77,409.48
  6. Step 6: Final answer
    x = 33,008.53

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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.