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Finding the Fourth Proportional to 64,709.53, 89,298.97 and 36,415.22

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Solution

The fourth proportional to 64,709.53, 89,298.97 and 36,415.22 is: 50,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,709.53 : 89,298.97 = 36,415.22 : x
  2. Step 2: Convert to fraction form
    64,709.53/89,298.97 = 36,415.22/x
  3. Step 3: Cross multiply
    64,709.53x = 89,298.97 × 36,415.22
  4. Step 4: Simplify right side
    64,709.53x = 3,251,841,638.32
  5. Step 5: Solve for x
    x = 3,251,841,638.32/64,709.53
  6. Step 6: Final answer
    x = 50,252.90

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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.