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Finding the Fourth Proportional to 40,122.99, 55,368.99 and 22,217.94

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Solution

The fourth proportional to 40,122.99, 55,368.99 and 22,217.94 is: 30,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,122.99 : 55,368.99 = 22,217.94 : x
  2. Step 2: Convert to fraction form
    40,122.99/55,368.99 = 22,217.94/x
  3. Step 3: Cross multiply
    40,122.99x = 55,368.99 × 22,217.94
  4. Step 4: Simplify right side
    40,122.99x = 1,230,184,897.68
  5. Step 5: Solve for x
    x = 1,230,184,897.68/40,122.99
  6. Step 6: Final answer
    x = 30,660.35

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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.