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Finding the Fourth Proportional to 1,864.08, 2,572.50 and 1,036.08

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Solution

The fourth proportional to 1,864.08, 2,572.50 and 1,036.08 is: 1,429.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.08 : 2,572.50 = 1,036.08 : x
  2. Step 2: Convert to fraction form
    1,864.08/2,572.50 = 1,036.08/x
  3. Step 3: Cross multiply
    1,864.08x = 2,572.50 × 1,036.08
  4. Step 4: Simplify right side
    1,864.08x = 2,665,315.80
  5. Step 5: Solve for x
    x = 2,665,315.80/1,864.08
  6. Step 6: Final answer
    x = 1,429.83

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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.