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Finding the Fourth Proportional to 8,671.42, 11,966.56 and 4,692.54

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Solution

The fourth proportional to 8,671.42, 11,966.56 and 4,692.54 is: 6,475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.42 : 11,966.56 = 4,692.54 : x
  2. Step 2: Convert to fraction form
    8,671.42/11,966.56 = 4,692.54/x
  3. Step 3: Cross multiply
    8,671.42x = 11,966.56 × 4,692.54
  4. Step 4: Simplify right side
    8,671.42x = 56,153,561.46
  5. Step 5: Solve for x
    x = 56,153,561.46/8,671.42
  6. Step 6: Final answer
    x = 6,475.71

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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.