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Finding the Fourth Proportional to 5,920.40, 8,869.08 and 2,994.32

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Solution

The fourth proportional to 5,920.40, 8,869.08 and 2,994.32 is: 4,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.40 : 8,869.08 = 2,994.32 : x
  2. Step 2: Convert to fraction form
    5,920.40/8,869.08 = 2,994.32/x
  3. Step 3: Cross multiply
    5,920.40x = 8,869.08 × 2,994.32
  4. Step 4: Simplify right side
    5,920.40x = 26,556,863.63
  5. Step 5: Solve for x
    x = 26,556,863.63/5,920.40
  6. Step 6: Final answer
    x = 4,485.65

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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.