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Finding the Fourth Proportional to 7,005.88, 10,505.10 and 2,074.84

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Solution

The fourth proportional to 7,005.88, 10,505.10 and 2,074.84 is: 3,111.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,005.88 : 10,505.10 = 2,074.84 : x
  2. Step 2: Convert to fraction form
    7,005.88/10,505.10 = 2,074.84/x
  3. Step 3: Cross multiply
    7,005.88x = 10,505.10 × 2,074.84
  4. Step 4: Simplify right side
    7,005.88x = 21,796,401.68
  5. Step 5: Solve for x
    x = 21,796,401.68/7,005.88
  6. Step 6: Final answer
    x = 3,111.16

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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.