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Finding the Fourth Proportional to 1,502.82, 2,256.66 and 854.01

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Solution

The fourth proportional to 1,502.82, 2,256.66 and 854.01 is: 1,282.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502.82 : 2,256.66 = 854.01 : x
  2. Step 2: Convert to fraction form
    1,502.82/2,256.66 = 854.01/x
  3. Step 3: Cross multiply
    1,502.82x = 2,256.66 × 854.01
  4. Step 4: Simplify right side
    1,502.82x = 1,927,210.21
  5. Step 5: Solve for x
    x = 1,927,210.21/1,502.82
  6. Step 6: Final answer
    x = 1,282.40

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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.