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Finding the Fourth Proportional to 65,816.52, 90,826.76 and 36,008.52

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Solution

The fourth proportional to 65,816.52, 90,826.76 and 36,008.52 is: 49,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,816.52 : 90,826.76 = 36,008.52 : x
  2. Step 2: Convert to fraction form
    65,816.52/90,826.76 = 36,008.52/x
  3. Step 3: Cross multiply
    65,816.52x = 90,826.76 × 36,008.52
  4. Step 4: Simplify right side
    65,816.52x = 3,270,537,204.00
  5. Step 5: Solve for x
    x = 3,270,537,204.00/65,816.52
  6. Step 6: Final answer
    x = 49,691.74

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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.