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Finding the Fourth Proportional to 3,530.84, 5,296.28 and 933.76

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Solution

The fourth proportional to 3,530.84, 5,296.28 and 933.76 is: 1,400.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.84 : 5,296.28 = 933.76 : x
  2. Step 2: Convert to fraction form
    3,530.84/5,296.28 = 933.76/x
  3. Step 3: Cross multiply
    3,530.84x = 5,296.28 × 933.76
  4. Step 4: Simplify right side
    3,530.84x = 4,945,454.41
  5. Step 5: Solve for x
    x = 4,945,454.41/3,530.84
  6. Step 6: Final answer
    x = 1,400.65

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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.