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Finding the Fourth Proportional to 45,657.88, 63,007.87 and 27,749.54

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Solution

The fourth proportional to 45,657.88, 63,007.87 and 27,749.54 is: 38,294.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,657.88 : 63,007.87 = 27,749.54 : x
  2. Step 2: Convert to fraction form
    45,657.88/63,007.87 = 27,749.54/x
  3. Step 3: Cross multiply
    45,657.88x = 63,007.87 × 27,749.54
  4. Step 4: Simplify right side
    45,657.88x = 1,748,439,408.88
  5. Step 5: Solve for x
    x = 1,748,439,408.88/45,657.88
  6. Step 6: Final answer
    x = 38,294.36

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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.