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Finding the Fourth Proportional to 65,579.68, 90,500.24 and 35,772.32

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Solution

The fourth proportional to 65,579.68, 90,500.24 and 35,772.32 is: 49,365.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,579.68 : 90,500.24 = 35,772.32 : x
  2. Step 2: Convert to fraction form
    65,579.68/90,500.24 = 35,772.32/x
  3. Step 3: Cross multiply
    65,579.68x = 90,500.24 × 35,772.32
  4. Step 4: Simplify right side
    65,579.68x = 3,237,403,545.36
  5. Step 5: Solve for x
    x = 3,237,403,545.36/65,579.68
  6. Step 6: Final answer
    x = 49,365.96

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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.