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Finding the Fourth Proportional to 9,920.01, 14,879.88 and 2,994.51

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Solution

The fourth proportional to 9,920.01, 14,879.88 and 2,994.51 is: 4,491.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920.01 : 14,879.88 = 2,994.51 : x
  2. Step 2: Convert to fraction form
    9,920.01/14,879.88 = 2,994.51/x
  3. Step 3: Cross multiply
    9,920.01x = 14,879.88 × 2,994.51
  4. Step 4: Simplify right side
    9,920.01x = 44,557,949.46
  5. Step 5: Solve for x
    x = 44,557,949.46/9,920.01
  6. Step 6: Final answer
    x = 4,491.72

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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.