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Finding the Fourth Proportional to 9,900.92, 14,851.65 and 2,880.65

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Solution

The fourth proportional to 9,900.92, 14,851.65 and 2,880.65 is: 4,321.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,900.92 : 14,851.65 = 2,880.65 : x
  2. Step 2: Convert to fraction form
    9,900.92/14,851.65 = 2,880.65/x
  3. Step 3: Cross multiply
    9,900.92x = 14,851.65 × 2,880.65
  4. Step 4: Simplify right side
    9,900.92x = 42,782,331.31
  5. Step 5: Solve for x
    x = 42,782,331.31/9,900.92
  6. Step 6: Final answer
    x = 4,321.05

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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.