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Finding the Fourth Proportional to 9,919.83, 14,874.48 and 4,366.74

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Solution

The fourth proportional to 9,919.83, 14,874.48 and 4,366.74 is: 6,547.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.83 : 14,874.48 = 4,366.74 : x
  2. Step 2: Convert to fraction form
    9,919.83/14,874.48 = 4,366.74/x
  3. Step 3: Cross multiply
    9,919.83x = 14,874.48 × 4,366.74
  4. Step 4: Simplify right side
    9,919.83x = 64,952,986.80
  5. Step 5: Solve for x
    x = 64,952,986.80/9,919.83
  6. Step 6: Final answer
    x = 6,547.79

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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.