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Finding the Fourth Proportional to 9,920.65, 14,881.52 and 2,994.97

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Solution

The fourth proportional to 9,920.65, 14,881.52 and 2,994.97 is: 4,492.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920.65 : 14,881.52 = 2,994.97 : x
  2. Step 2: Convert to fraction form
    9,920.65/14,881.52 = 2,994.97/x
  3. Step 3: Cross multiply
    9,920.65x = 14,881.52 × 2,994.97
  4. Step 4: Simplify right side
    9,920.65x = 44,569,690.98
  5. Step 5: Solve for x
    x = 44,569,690.98/9,920.65
  6. Step 6: Final answer
    x = 4,492.62

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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.