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Finding the Fourth Proportional to 65,640.51, 90,585.99 and 37,348.02

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Solution

The fourth proportional to 65,640.51, 90,585.99 and 37,348.02 is: 51,541.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,640.51 : 90,585.99 = 37,348.02 : x
  2. Step 2: Convert to fraction form
    65,640.51/90,585.99 = 37,348.02/x
  3. Step 3: Cross multiply
    65,640.51x = 90,585.99 × 37,348.02
  4. Step 4: Simplify right side
    65,640.51x = 3,383,207,366.24
  5. Step 5: Solve for x
    x = 3,383,207,366.24/65,640.51
  6. Step 6: Final answer
    x = 51,541.45

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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.