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Finding the Fourth Proportional to 9,479.93, 14,220.10 and 2,905.97

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Solution

The fourth proportional to 9,479.93, 14,220.10 and 2,905.97 is: 4,359.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,479.93 : 14,220.10 = 2,905.97 : x
  2. Step 2: Convert to fraction form
    9,479.93/14,220.10 = 2,905.97/x
  3. Step 3: Cross multiply
    9,479.93x = 14,220.10 × 2,905.97
  4. Step 4: Simplify right side
    9,479.93x = 41,323,184.00
  5. Step 5: Solve for x
    x = 41,323,184.00/9,479.93
  6. Step 6: Final answer
    x = 4,359.02

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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.