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Finding the Fourth Proportional to 1,032.06, 1,544.96 and 666.12

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Solution

The fourth proportional to 1,032.06, 1,544.96 and 666.12 is: 997.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.06 : 1,544.96 = 666.12 : x
  2. Step 2: Convert to fraction form
    1,032.06/1,544.96 = 666.12/x
  3. Step 3: Cross multiply
    1,032.06x = 1,544.96 × 666.12
  4. Step 4: Simplify right side
    1,032.06x = 1,029,128.76
  5. Step 5: Solve for x
    x = 1,029,128.76/1,032.06
  6. Step 6: Final answer
    x = 997.16

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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.