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Finding the Fourth Proportional to 42,692.92, 64,049.46 and 14,613.32

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Solution

The fourth proportional to 42,692.92, 64,049.46 and 14,613.32 is: 21,923.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,692.92 : 64,049.46 = 14,613.32 : x
  2. Step 2: Convert to fraction form
    42,692.92/64,049.46 = 14,613.32/x
  3. Step 3: Cross multiply
    42,692.92x = 64,049.46 × 14,613.32
  4. Step 4: Simplify right side
    42,692.92x = 935,975,254.81
  5. Step 5: Solve for x
    x = 935,975,254.81/42,692.92
  6. Step 6: Final answer
    x = 21,923.43

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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.