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Finding the Fourth Proportional to 1,672.07, 2,307.33 and 925.97

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Solution

The fourth proportional to 1,672.07, 2,307.33 and 925.97 is: 1,277.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.07 : 2,307.33 = 925.97 : x
  2. Step 2: Convert to fraction form
    1,672.07/2,307.33 = 925.97/x
  3. Step 3: Cross multiply
    1,672.07x = 2,307.33 × 925.97
  4. Step 4: Simplify right side
    1,672.07x = 2,136,524.13
  5. Step 5: Solve for x
    x = 2,136,524.13/1,672.07
  6. Step 6: Final answer
    x = 1,277.77

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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.