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Finding the Fourth Proportional to 64,015.56, 88,320.92 and 35,715.78

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Solution

The fourth proportional to 64,015.56, 88,320.92 and 35,715.78 is: 49,276.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,015.56 : 88,320.92 = 35,715.78 : x
  2. Step 2: Convert to fraction form
    64,015.56/88,320.92 = 35,715.78/x
  3. Step 3: Cross multiply
    64,015.56x = 88,320.92 × 35,715.78
  4. Step 4: Simplify right side
    64,015.56x = 3,154,450,369.54
  5. Step 5: Solve for x
    x = 3,154,450,369.54/64,015.56
  6. Step 6: Final answer
    x = 49,276.31

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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.