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Finding the Fourth Proportional to 40,389.99, 55,736.86 and 22,484.40

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Solution

The fourth proportional to 40,389.99, 55,736.86 and 22,484.40 is: 31,027.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,389.99 : 55,736.86 = 22,484.40 : x
  2. Step 2: Convert to fraction form
    40,389.99/55,736.86 = 22,484.40/x
  3. Step 3: Cross multiply
    40,389.99x = 55,736.86 × 22,484.40
  4. Step 4: Simplify right side
    40,389.99x = 1,253,209,854.98
  5. Step 5: Solve for x
    x = 1,253,209,854.98/40,389.99
  6. Step 6: Final answer
    x = 31,027.73

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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.