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Finding the Fourth Proportional to 40,388.99, 55,735.49 and 22,483.40

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Solution

The fourth proportional to 40,388.99, 55,735.49 and 22,483.40 is: 31,026.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,388.99 : 55,735.49 = 22,483.40 : x
  2. Step 2: Convert to fraction form
    40,388.99/55,735.49 = 22,483.40/x
  3. Step 3: Cross multiply
    40,388.99x = 55,735.49 × 22,483.40
  4. Step 4: Simplify right side
    40,388.99x = 1,253,122,924.77
  5. Step 5: Solve for x
    x = 1,253,122,924.77/40,388.99
  6. Step 6: Final answer
    x = 31,026.35

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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.