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Finding the Fourth Proportional to 2,070.59, 2,857.18 and 1,186.57

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Solution

The fourth proportional to 2,070.59, 2,857.18 and 1,186.57 is: 1,637.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.59 : 2,857.18 = 1,186.57 : x
  2. Step 2: Convert to fraction form
    2,070.59/2,857.18 = 1,186.57/x
  3. Step 3: Cross multiply
    2,070.59x = 2,857.18 × 1,186.57
  4. Step 4: Simplify right side
    2,070.59x = 3,390,244.07
  5. Step 5: Solve for x
    x = 3,390,244.07/2,070.59
  6. Step 6: Final answer
    x = 1,637.33

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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.