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Finding the Fourth Proportional to 40,235.68, 60,346.56 and 10,653.94

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Solution

The fourth proportional to 40,235.68, 60,346.56 and 10,653.94 is: 15,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,235.68 : 60,346.56 = 10,653.94 : x
  2. Step 2: Convert to fraction form
    40,235.68/60,346.56 = 10,653.94/x
  3. Step 3: Cross multiply
    40,235.68x = 60,346.56 × 10,653.94
  4. Step 4: Simplify right side
    40,235.68x = 642,928,629.45
  5. Step 5: Solve for x
    x = 642,928,629.45/40,235.68
  6. Step 6: Final answer
    x = 15,979.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.