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Finding the Fourth Proportional to 62,788.32, 86,647.91 and 34,495.83

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Solution

The fourth proportional to 62,788.32, 86,647.91 and 34,495.83 is: 47,604.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,788.32 : 86,647.91 = 34,495.83 : x
  2. Step 2: Convert to fraction form
    62,788.32/86,647.91 = 34,495.83/x
  3. Step 3: Cross multiply
    62,788.32x = 86,647.91 × 34,495.83
  4. Step 4: Simplify right side
    62,788.32x = 2,988,991,400.74
  5. Step 5: Solve for x
    x = 2,988,991,400.74/62,788.32
  6. Step 6: Final answer
    x = 47,604.26

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1.5x scale

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.