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Finding the Fourth Proportional to 65,513.66, 90,411.27 and 37,224.14

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Solution

The fourth proportional to 65,513.66, 90,411.27 and 37,224.14 is: 51,370.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,513.66 : 90,411.27 = 37,224.14 : x
  2. Step 2: Convert to fraction form
    65,513.66/90,411.27 = 37,224.14/x
  3. Step 3: Cross multiply
    65,513.66x = 90,411.27 × 37,224.14
  4. Step 4: Simplify right side
    65,513.66x = 3,365,481,772.06
  5. Step 5: Solve for x
    x = 3,365,481,772.06/65,513.66
  6. Step 6: Final answer
    x = 51,370.69

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1.5x scale

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.