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Finding the Fourth Proportional to 10,484.37, 15,703.88 and 4,929.39

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Solution

The fourth proportional to 10,484.37, 15,703.88 and 4,929.39 is: 7,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,484.37 : 15,703.88 = 4,929.39 : x
  2. Step 2: Convert to fraction form
    10,484.37/15,703.88 = 4,929.39/x
  3. Step 3: Cross multiply
    10,484.37x = 15,703.88 × 4,929.39
  4. Step 4: Simplify right side
    10,484.37x = 77,410,524.39
  5. Step 5: Solve for x
    x = 77,410,524.39/10,484.37
  6. Step 6: Final answer
    x = 7,383.42

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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.