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Finding the Fourth Proportional to 7,851.08, 11,776.62 and 3,473

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Solution

The fourth proportional to 7,851.08, 11,776.62 and 3,473 is: 5,209.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.08 : 11,776.62 = 3,473 : x
  2. Step 2: Convert to fraction form
    7,851.08/11,776.62 = 3,473/x
  3. Step 3: Cross multiply
    7,851.08x = 11,776.62 × 3,473
  4. Step 4: Simplify right side
    7,851.08x = 40,900,201.26
  5. Step 5: Solve for x
    x = 40,900,201.26/7,851.08
  6. Step 6: Final answer
    x = 5,209.50

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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.