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Finding the Fourth Proportional to 65,255.34, 90,048.86 and 36,960.42

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Solution

The fourth proportional to 65,255.34, 90,048.86 and 36,960.42 is: 51,003.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,255.34 : 90,048.86 = 36,960.42 : x
  2. Step 2: Convert to fraction form
    65,255.34/90,048.86 = 36,960.42/x
  3. Step 3: Cross multiply
    65,255.34x = 90,048.86 × 36,960.42
  4. Step 4: Simplify right side
    65,255.34x = 3,328,243,686.12
  5. Step 5: Solve for x
    x = 3,328,243,686.12/65,255.34
  6. Step 6: Final answer
    x = 51,003.39

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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.