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Finding the Fourth Proportional to 70,038.33, 96,648.96 and 39,819.39

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Solution

The fourth proportional to 70,038.33, 96,648.96 and 39,819.39 is: 54,948.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,038.33 : 96,648.96 = 39,819.39 : x
  2. Step 2: Convert to fraction form
    70,038.33/96,648.96 = 39,819.39/x
  3. Step 3: Cross multiply
    70,038.33x = 96,648.96 × 39,819.39
  4. Step 4: Simplify right side
    70,038.33x = 3,848,502,631.33
  5. Step 5: Solve for x
    x = 3,848,502,631.33/70,038.33
  6. Step 6: Final answer
    x = 54,948.52

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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.