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Finding the Fourth Proportional to 7,017.96, 10,525.14 and 3,319.20

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Solution

The fourth proportional to 7,017.96, 10,525.14 and 3,319.20 is: 4,977.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,017.96 : 10,525.14 = 3,319.20 : x
  2. Step 2: Convert to fraction form
    7,017.96/10,525.14 = 3,319.20/x
  3. Step 3: Cross multiply
    7,017.96x = 10,525.14 × 3,319.20
  4. Step 4: Simplify right side
    7,017.96x = 34,935,044.69
  5. Step 5: Solve for x
    x = 34,935,044.69/7,017.96
  6. Step 6: Final answer
    x = 4,977.95

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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.