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Finding the Fourth Proportional to 65,192.88, 89,935.74 and 38,334.90

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Solution

The fourth proportional to 65,192.88, 89,935.74 and 38,334.90 is: 52,884.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,192.88 : 89,935.74 = 38,334.90 : x
  2. Step 2: Convert to fraction form
    65,192.88/89,935.74 = 38,334.90/x
  3. Step 3: Cross multiply
    65,192.88x = 89,935.74 × 38,334.90
  4. Step 4: Simplify right side
    65,192.88x = 3,447,677,599.33
  5. Step 5: Solve for x
    x = 3,447,677,599.33/65,192.88
  6. Step 6: Final answer
    x = 52,884.27

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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.