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Finding the Fourth Proportional to 7,976.25, 11,880.12 and 7,559.91

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Solution

The fourth proportional to 7,976.25, 11,880.12 and 7,559.91 is: 11,260.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.25 : 11,880.12 = 7,559.91 : x
  2. Step 2: Convert to fraction form
    7,976.25/11,880.12 = 7,559.91/x
  3. Step 3: Cross multiply
    7,976.25x = 11,880.12 × 7,559.91
  4. Step 4: Simplify right side
    7,976.25x = 89,812,637.99
  5. Step 5: Solve for x
    x = 89,812,637.99/7,976.25
  6. Step 6: Final answer
    x = 11,260.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.