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Finding the Fourth Proportional to 65,572.64, 90,490.11 and 36,892.34

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Solution

The fourth proportional to 65,572.64, 90,490.11 and 36,892.34 is: 50,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,572.64 : 90,490.11 = 36,892.34 : x
  2. Step 2: Convert to fraction form
    65,572.64/90,490.11 = 36,892.34/x
  3. Step 3: Cross multiply
    65,572.64x = 90,490.11 × 36,892.34
  4. Step 4: Simplify right side
    65,572.64x = 3,338,391,452.31
  5. Step 5: Solve for x
    x = 3,338,391,452.31/65,572.64
  6. Step 6: Final answer
    x = 50,911.35

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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.