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Finding the Fourth Proportional to 65,887.80, 90,925.20 and 35,673.13

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Solution

The fourth proportional to 65,887.80, 90,925.20 and 35,673.13 is: 49,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,887.80 : 90,925.20 = 35,673.13 : x
  2. Step 2: Convert to fraction form
    65,887.80/90,925.20 = 35,673.13/x
  3. Step 3: Cross multiply
    65,887.80x = 90,925.20 × 35,673.13
  4. Step 4: Simplify right side
    65,887.80x = 3,243,586,479.88
  5. Step 5: Solve for x
    x = 3,243,586,479.88/65,887.80
  6. Step 6: Final answer
    x = 49,228.94

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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.