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Finding the Fourth Proportional to 65,774.98, 90,771.93 and 37,479.94

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Solution

The fourth proportional to 65,774.98, 90,771.93 and 37,479.94 is: 51,723.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,774.98 : 90,771.93 = 37,479.94 : x
  2. Step 2: Convert to fraction form
    65,774.98/90,771.93 = 37,479.94/x
  3. Step 3: Cross multiply
    65,774.98x = 90,771.93 × 37,479.94
  4. Step 4: Simplify right side
    65,774.98x = 3,402,126,490.08
  5. Step 5: Solve for x
    x = 3,402,126,490.08/65,774.98
  6. Step 6: Final answer
    x = 51,723.72

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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.