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Finding the Fourth Proportional to 65,953.44, 91,018.08 and 47,135.52

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Solution

The fourth proportional to 65,953.44, 91,018.08 and 47,135.52 is: 65,048.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,953.44 : 91,018.08 = 47,135.52 : x
  2. Step 2: Convert to fraction form
    65,953.44/91,018.08 = 47,135.52/x
  3. Step 3: Cross multiply
    65,953.44x = 91,018.08 × 47,135.52
  4. Step 4: Simplify right side
    65,953.44x = 4,290,184,530.20
  5. Step 5: Solve for x
    x = 4,290,184,530.20/65,953.44
  6. Step 6: Final answer
    x = 65,048.68

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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.