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Finding the Fourth Proportional to 1,368.69, 1,886.81 and 975.03

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Solution

The fourth proportional to 1,368.69, 1,886.81 and 975.03 is: 1,344.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.69 : 1,886.81 = 975.03 : x
  2. Step 2: Convert to fraction form
    1,368.69/1,886.81 = 975.03/x
  3. Step 3: Cross multiply
    1,368.69x = 1,886.81 × 975.03
  4. Step 4: Simplify right side
    1,368.69x = 1,839,689.89
  5. Step 5: Solve for x
    x = 1,839,689.89/1,368.69
  6. Step 6: Final answer
    x = 1,344.13

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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.