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Finding the Fourth Proportional to 7,880.53, 11,820.77 and 2,334.30

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Solution

The fourth proportional to 7,880.53, 11,820.77 and 2,334.30 is: 3,501.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.53 : 11,820.77 = 2,334.30 : x
  2. Step 2: Convert to fraction form
    7,880.53/11,820.77 = 2,334.30/x
  3. Step 3: Cross multiply
    7,880.53x = 11,820.77 × 2,334.30
  4. Step 4: Simplify right side
    7,880.53x = 27,593,267.01
  5. Step 5: Solve for x
    x = 27,593,267.01/7,880.53
  6. Step 6: Final answer
    x = 3,501.45

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Similar ratio
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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.