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Finding the Fourth Proportional to 26,040, 39,066.66 and 7,572

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Solution

The fourth proportional to 26,040, 39,066.66 and 7,572 is: 11,359.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,040 : 39,066.66 = 7,572 : x
  2. Step 2: Convert to fraction form
    26,040/39,066.66 = 7,572/x
  3. Step 3: Cross multiply
    26,040x = 39,066.66 × 7,572
  4. Step 4: Simplify right side
    26,040x = 295,812,749.52
  5. Step 5: Solve for x
    x = 295,812,749.52/26,040
  6. Step 6: Final answer
    x = 11,359.94

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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.