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Finding the Fourth Proportional to 65,752.94, 90,731.66 and 38,527.22

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Solution

The fourth proportional to 65,752.94, 90,731.66 and 38,527.22 is: 53,163.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,752.94 : 90,731.66 = 38,527.22 : x
  2. Step 2: Convert to fraction form
    65,752.94/90,731.66 = 38,527.22/x
  3. Step 3: Cross multiply
    65,752.94x = 90,731.66 × 38,527.22
  4. Step 4: Simplify right side
    65,752.94x = 3,495,638,625.79
  5. Step 5: Solve for x
    x = 3,495,638,625.79/65,752.94
  6. Step 6: Final answer
    x = 53,163.23

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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.