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Finding the Fourth Proportional to 7,281.74, 10,922.68 and 2,900.32

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Solution

The fourth proportional to 7,281.74, 10,922.68 and 2,900.32 is: 4,350.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.74 : 10,922.68 = 2,900.32 : x
  2. Step 2: Convert to fraction form
    7,281.74/10,922.68 = 2,900.32/x
  3. Step 3: Cross multiply
    7,281.74x = 10,922.68 × 2,900.32
  4. Step 4: Simplify right side
    7,281.74x = 31,679,267.26
  5. Step 5: Solve for x
    x = 31,679,267.26/7,281.74
  6. Step 6: Final answer
    x = 4,350.51

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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.