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Finding the Fourth Proportional to 65,477.01, 90,392.64 and 44,079.36

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Solution

The fourth proportional to 65,477.01, 90,392.64 and 44,079.36 is: 60,852.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,477.01 : 90,392.64 = 44,079.36 : x
  2. Step 2: Convert to fraction form
    65,477.01/90,392.64 = 44,079.36/x
  3. Step 3: Cross multiply
    65,477.01x = 90,392.64 × 44,079.36
  4. Step 4: Simplify right side
    65,477.01x = 3,984,449,719.91
  5. Step 5: Solve for x
    x = 3,984,449,719.91/65,477.01
  6. Step 6: Final answer
    x = 60,852.65

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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.