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Finding the Fourth Proportional to 4,930.32, 7,363 and 4,386

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Solution

The fourth proportional to 4,930.32, 7,363 and 4,386 is: 6,550.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.32 : 7,363 = 4,386 : x
  2. Step 2: Convert to fraction form
    4,930.32/7,363 = 4,386/x
  3. Step 3: Cross multiply
    4,930.32x = 7,363 × 4,386
  4. Step 4: Simplify right side
    4,930.32x = 32,294,118
  5. Step 5: Solve for x
    x = 32,294,118/4,930.32
  6. Step 6: Final answer
    x = 6,550.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.