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Finding the Fourth Proportional to 1,097.19, 1,642.01 and 1,051.83

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Solution

The fourth proportional to 1,097.19, 1,642.01 and 1,051.83 is: 1,574.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.19 : 1,642.01 = 1,051.83 : x
  2. Step 2: Convert to fraction form
    1,097.19/1,642.01 = 1,051.83/x
  3. Step 3: Cross multiply
    1,097.19x = 1,642.01 × 1,051.83
  4. Step 4: Simplify right side
    1,097.19x = 1,727,110.12
  5. Step 5: Solve for x
    x = 1,727,110.12/1,097.19
  6. Step 6: Final answer
    x = 1,574.12

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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.