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Finding the Fourth Proportional to 72,096.48, 98,963.64 and 63,960.84

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Solution

The fourth proportional to 72,096.48, 98,963.64 and 63,960.84 is: 87,796.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,096.48 : 98,963.64 = 63,960.84 : x
  2. Step 2: Convert to fraction form
    72,096.48/98,963.64 = 63,960.84/x
  3. Step 3: Cross multiply
    72,096.48x = 98,963.64 × 63,960.84
  4. Step 4: Simplify right side
    72,096.48x = 6,329,797,543.86
  5. Step 5: Solve for x
    x = 6,329,797,543.86/72,096.48
  6. Step 6: Final answer
    x = 87,796.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.