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Finding the Fourth Proportional to 2,080, 2,870.71 and 1,334.80

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Solution

The fourth proportional to 2,080, 2,870.71 and 1,334.80 is: 1,842.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080 : 2,870.71 = 1,334.80 : x
  2. Step 2: Convert to fraction form
    2,080/2,870.71 = 1,334.80/x
  3. Step 3: Cross multiply
    2,080x = 2,870.71 × 1,334.80
  4. Step 4: Simplify right side
    2,080x = 3,831,823.71
  5. Step 5: Solve for x
    x = 3,831,823.71/2,080
  6. Step 6: Final answer
    x = 1,842.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.