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Finding the Fourth Proportional to 64,652.76, 89,220.57 and 36,358.44

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Solution

The fourth proportional to 64,652.76, 89,220.57 and 36,358.44 is: 50,174.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,652.76 : 89,220.57 = 36,358.44 : x
  2. Step 2: Convert to fraction form
    64,652.76/89,220.57 = 36,358.44/x
  3. Step 3: Cross multiply
    64,652.76x = 89,220.57 × 36,358.44
  4. Step 4: Simplify right side
    64,652.76x = 3,243,920,741.11
  5. Step 5: Solve for x
    x = 3,243,920,741.11/64,652.76
  6. Step 6: Final answer
    x = 50,174.51

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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.