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Finding the Fourth Proportional to 1,110.70, 1,532.95 and 846.01

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Solution

The fourth proportional to 1,110.70, 1,532.95 and 846.01 is: 1,167.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.70 : 1,532.95 = 846.01 : x
  2. Step 2: Convert to fraction form
    1,110.70/1,532.95 = 846.01/x
  3. Step 3: Cross multiply
    1,110.70x = 1,532.95 × 846.01
  4. Step 4: Simplify right side
    1,110.70x = 1,296,891.03
  5. Step 5: Solve for x
    x = 1,296,891.03/1,110.70
  6. Step 6: Final answer
    x = 1,167.63

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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.