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Finding the Fourth Proportional to 64,083.92, 88,436.16 and 35,403.21

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Solution

The fourth proportional to 64,083.92, 88,436.16 and 35,403.21 is: 48,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,083.92 : 88,436.16 = 35,403.21 : x
  2. Step 2: Convert to fraction form
    64,083.92/88,436.16 = 35,403.21/x
  3. Step 3: Cross multiply
    64,083.92x = 88,436.16 × 35,403.21
  4. Step 4: Simplify right side
    64,083.92x = 3,130,923,944.07
  5. Step 5: Solve for x
    x = 3,130,923,944.07/64,083.92
  6. Step 6: Final answer
    x = 48,856.63

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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.