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Finding the Fourth Proportional to 8,415.95, 12,624.10 and 2,572.56

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Solution

The fourth proportional to 8,415.95, 12,624.10 and 2,572.56 is: 3,858.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.95 : 12,624.10 = 2,572.56 : x
  2. Step 2: Convert to fraction form
    8,415.95/12,624.10 = 2,572.56/x
  3. Step 3: Cross multiply
    8,415.95x = 12,624.10 × 2,572.56
  4. Step 4: Simplify right side
    8,415.95x = 32,476,248.26
  5. Step 5: Solve for x
    x = 32,476,248.26/8,415.95
  6. Step 6: Final answer
    x = 3,858.90

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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.