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Finding the Fourth Proportional to 1,864.88, 2,573.53 and 1,036.88

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Solution

The fourth proportional to 1,864.88, 2,573.53 and 1,036.88 is: 1,430.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.88 : 2,573.53 = 1,036.88 : x
  2. Step 2: Convert to fraction form
    1,864.88/2,573.53 = 1,036.88/x
  3. Step 3: Cross multiply
    1,864.88x = 2,573.53 × 1,036.88
  4. Step 4: Simplify right side
    1,864.88x = 2,668,426.33
  5. Step 5: Solve for x
    x = 2,668,426.33/1,864.88
  6. Step 6: Final answer
    x = 1,430.89

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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.