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Finding the Fourth Proportional to 1,930.32, 2,895.16 and 562

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Solution

The fourth proportional to 1,930.32, 2,895.16 and 562 is: 842.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.32 : 2,895.16 = 562 : x
  2. Step 2: Convert to fraction form
    1,930.32/2,895.16 = 562/x
  3. Step 3: Cross multiply
    1,930.32x = 2,895.16 × 562
  4. Step 4: Simplify right side
    1,930.32x = 1,627,079.92
  5. Step 5: Solve for x
    x = 1,627,079.92/1,930.32
  6. Step 6: Final answer
    x = 842.91

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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.