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Finding the Fourth Proportional to 64,686.92, 89,254.44 and 37,824.21

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Solution

The fourth proportional to 64,686.92, 89,254.44 and 37,824.21 is: 52,189.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,686.92 : 89,254.44 = 37,824.21 : x
  2. Step 2: Convert to fraction form
    64,686.92/89,254.44 = 37,824.21/x
  3. Step 3: Cross multiply
    64,686.92x = 89,254.44 × 37,824.21
  4. Step 4: Simplify right side
    64,686.92x = 3,375,978,681.99
  5. Step 5: Solve for x
    x = 3,375,978,681.99/64,686.92
  6. Step 6: Final answer
    x = 52,189.51

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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.