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Finding the Fourth Proportional to 64,523.76, 89,043.84 and 36,228.84

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Solution

The fourth proportional to 64,523.76, 89,043.84 and 36,228.84 is: 49,996.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,523.76 : 89,043.84 = 36,228.84 : x
  2. Step 2: Convert to fraction form
    64,523.76/89,043.84 = 36,228.84/x
  3. Step 3: Cross multiply
    64,523.76x = 89,043.84 × 36,228.84
  4. Step 4: Simplify right side
    64,523.76x = 3,225,955,032.35
  5. Step 5: Solve for x
    x = 3,225,955,032.35/64,523.76
  6. Step 6: Final answer
    x = 49,996.39

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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.