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Finding the Fourth Proportional to 65,746.45, 90,729.88 and 37,456.93

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Solution

The fourth proportional to 65,746.45, 90,729.88 and 37,456.93 is: 51,690.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,746.45 : 90,729.88 = 37,456.93 : x
  2. Step 2: Convert to fraction form
    65,746.45/90,729.88 = 37,456.93/x
  3. Step 3: Cross multiply
    65,746.45x = 90,729.88 × 37,456.93
  4. Step 4: Simplify right side
    65,746.45x = 3,398,462,764.07
  5. Step 5: Solve for x
    x = 3,398,462,764.07/65,746.45
  6. Step 6: Final answer
    x = 51,690.44

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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.