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Finding the Fourth Proportional to 65,150.82, 89,892.45 and 38,291.22

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Solution

The fourth proportional to 65,150.82, 89,892.45 and 38,291.22 is: 52,832.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,150.82 : 89,892.45 = 38,291.22 : x
  2. Step 2: Convert to fraction form
    65,150.82/89,892.45 = 38,291.22/x
  3. Step 3: Cross multiply
    65,150.82x = 89,892.45 × 38,291.22
  4. Step 4: Simplify right side
    65,150.82x = 3,442,091,579.29
  5. Step 5: Solve for x
    x = 3,442,091,579.29/65,150.82
  6. Step 6: Final answer
    x = 52,832.67

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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.