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Finding the Fourth Proportional to 64,628.51, 89,195.66 and 36,339.66

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Solution

The fourth proportional to 64,628.51, 89,195.66 and 36,339.66 is: 50,153.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,628.51 : 89,195.66 = 36,339.66 : x
  2. Step 2: Convert to fraction form
    64,628.51/89,195.66 = 36,339.66/x
  3. Step 3: Cross multiply
    64,628.51x = 89,195.66 × 36,339.66
  4. Step 4: Simplify right side
    64,628.51x = 3,241,339,776.18
  5. Step 5: Solve for x
    x = 3,241,339,776.18/64,628.51
  6. Step 6: Final answer
    x = 50,153.41

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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.