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Finding the Fourth Proportional to 7,572.62, 10,450.13 and 4,215.39

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Solution

The fourth proportional to 7,572.62, 10,450.13 and 4,215.39 is: 5,817.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.62 : 10,450.13 = 4,215.39 : x
  2. Step 2: Convert to fraction form
    7,572.62/10,450.13 = 4,215.39/x
  3. Step 3: Cross multiply
    7,572.62x = 10,450.13 × 4,215.39
  4. Step 4: Simplify right side
    7,572.62x = 44,051,373.50
  5. Step 5: Solve for x
    x = 44,051,373.50/7,572.62
  6. Step 6: Final answer
    x = 5,817.19

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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.