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Finding the Fourth Proportional to 1,097.28, 1,510.02 and 1,061.64

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Solution

The fourth proportional to 1,097.28, 1,510.02 and 1,061.64 is: 1,460.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.28 : 1,510.02 = 1,061.64 : x
  2. Step 2: Convert to fraction form
    1,097.28/1,510.02 = 1,061.64/x
  3. Step 3: Cross multiply
    1,097.28x = 1,510.02 × 1,061.64
  4. Step 4: Simplify right side
    1,097.28x = 1,603,097.63
  5. Step 5: Solve for x
    x = 1,603,097.63/1,097.28
  6. Step 6: Final answer
    x = 1,460.97

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Why These Related Problems?

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