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Finding the Fourth Proportional to 4,697.78, 7,040.45 and 2,501.78

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Solution

The fourth proportional to 4,697.78, 7,040.45 and 2,501.78 is: 3,749.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,697.78 : 7,040.45 = 2,501.78 : x
  2. Step 2: Convert to fraction form
    4,697.78/7,040.45 = 2,501.78/x
  3. Step 3: Cross multiply
    4,697.78x = 7,040.45 × 2,501.78
  4. Step 4: Simplify right side
    4,697.78x = 17,613,657.00
  5. Step 5: Solve for x
    x = 17,613,657.00/4,697.78
  6. Step 6: Final answer
    x = 3,749.36

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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.