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Finding the Fourth Proportional to 42,880.92, 64,325.72 and 14,797.68

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Solution

The fourth proportional to 42,880.92, 64,325.72 and 14,797.68 is: 22,198.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,880.92 : 64,325.72 = 14,797.68 : x
  2. Step 2: Convert to fraction form
    42,880.92/64,325.72 = 14,797.68/x
  3. Step 3: Cross multiply
    42,880.92x = 64,325.72 × 14,797.68
  4. Step 4: Simplify right side
    42,880.92x = 951,871,420.33
  5. Step 5: Solve for x
    x = 951,871,420.33/42,880.92
  6. Step 6: Final answer
    x = 22,198.02

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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.