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Finding the Fourth Proportional to 64,363.45, 88,789.99 and 55,853.62

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Solution

The fourth proportional to 64,363.45, 88,789.99 and 55,853.62 is: 77,050.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,363.45 : 88,789.99 = 55,853.62 : x
  2. Step 2: Convert to fraction form
    64,363.45/88,789.99 = 55,853.62/x
  3. Step 3: Cross multiply
    64,363.45x = 88,789.99 × 55,853.62
  4. Step 4: Simplify right side
    64,363.45x = 4,959,242,361.26
  5. Step 5: Solve for x
    x = 4,959,242,361.26/64,363.45
  6. Step 6: Final answer
    x = 77,050.60

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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.