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Finding the Fourth Proportional to 65,910.49, 90,955.98 and 35,695.11

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Solution

The fourth proportional to 65,910.49, 90,955.98 and 35,695.11 is: 49,258.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,910.49 : 90,955.98 = 35,695.11 : x
  2. Step 2: Convert to fraction form
    65,910.49/90,955.98 = 35,695.11/x
  3. Step 3: Cross multiply
    65,910.49x = 90,955.98 × 35,695.11
  4. Step 4: Simplify right side
    65,910.49x = 3,246,683,256.48
  5. Step 5: Solve for x
    x = 3,246,683,256.48/65,910.49
  6. Step 6: Final answer
    x = 49,258.98

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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.