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Finding the Fourth Proportional to 1,526.36, 2,106.35 and 863.33

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Solution

The fourth proportional to 1,526.36, 2,106.35 and 863.33 is: 1,191.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.36 : 2,106.35 = 863.33 : x
  2. Step 2: Convert to fraction form
    1,526.36/2,106.35 = 863.33/x
  3. Step 3: Cross multiply
    1,526.36x = 2,106.35 × 863.33
  4. Step 4: Simplify right side
    1,526.36x = 1,818,460.30
  5. Step 5: Solve for x
    x = 1,818,460.30/1,526.36
  6. Step 6: Final answer
    x = 1,191.37

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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.