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Finding the Fourth Proportional to 5,948.99, 8,920.40 and 2,615.90

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Solution

The fourth proportional to 5,948.99, 8,920.40 and 2,615.90 is: 3,922.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,948.99 : 8,920.40 = 2,615.90 : x
  2. Step 2: Convert to fraction form
    5,948.99/8,920.40 = 2,615.90/x
  3. Step 3: Cross multiply
    5,948.99x = 8,920.40 × 2,615.90
  4. Step 4: Simplify right side
    5,948.99x = 23,334,874.36
  5. Step 5: Solve for x
    x = 23,334,874.36/5,948.99
  6. Step 6: Final answer
    x = 3,922.50

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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.