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Finding the Fourth Proportional to 1,812.63, 2,502.02 and 1,066.57

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Solution

The fourth proportional to 1,812.63, 2,502.02 and 1,066.57 is: 1,472.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.63 : 2,502.02 = 1,066.57 : x
  2. Step 2: Convert to fraction form
    1,812.63/2,502.02 = 1,066.57/x
  3. Step 3: Cross multiply
    1,812.63x = 2,502.02 × 1,066.57
  4. Step 4: Simplify right side
    1,812.63x = 2,668,579.47
  5. Step 5: Solve for x
    x = 2,668,579.47/1,812.63
  6. Step 6: Final answer
    x = 1,472.21

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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.