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Finding the Fourth Proportional to 64,805.87, 97,205.55 and 25,370.21

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Solution

The fourth proportional to 64,805.87, 97,205.55 and 25,370.21 is: 38,054.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,805.87 : 97,205.55 = 25,370.21 : x
  2. Step 2: Convert to fraction form
    64,805.87/97,205.55 = 25,370.21/x
  3. Step 3: Cross multiply
    64,805.87x = 97,205.55 × 25,370.21
  4. Step 4: Simplify right side
    64,805.87x = 2,466,124,730.64
  5. Step 5: Solve for x
    x = 2,466,124,730.64/64,805.87
  6. Step 6: Final answer
    x = 38,054.04

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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.