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Finding the Fourth Proportional to 64,513.58, 89,028.76 and 36,228.38

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Solution

The fourth proportional to 64,513.58, 89,028.76 and 36,228.38 is: 49,995.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,513.58 : 89,028.76 = 36,228.38 : x
  2. Step 2: Convert to fraction form
    64,513.58/89,028.76 = 36,228.38/x
  3. Step 3: Cross multiply
    64,513.58x = 89,028.76 × 36,228.38
  4. Step 4: Simplify right side
    64,513.58x = 3,225,367,748.21
  5. Step 5: Solve for x
    x = 3,225,367,748.21/64,513.58
  6. Step 6: Final answer
    x = 49,995.18

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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.