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Finding the Fourth Proportional to 26,742.78, 40,111.07 and 7,022.88

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Solution

The fourth proportional to 26,742.78, 40,111.07 and 7,022.88 is: 10,533.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,742.78 : 40,111.07 = 7,022.88 : x
  2. Step 2: Convert to fraction form
    26,742.78/40,111.07 = 7,022.88/x
  3. Step 3: Cross multiply
    26,742.78x = 40,111.07 × 7,022.88
  4. Step 4: Simplify right side
    26,742.78x = 281,695,196.17
  5. Step 5: Solve for x
    x = 281,695,196.17/26,742.78
  6. Step 6: Final answer
    x = 10,533.50

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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.