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Finding the Fourth Proportional to 64,588.63, 89,134.95 and 36,294.25

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Solution

The fourth proportional to 64,588.63, 89,134.95 and 36,294.25 is: 50,087.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,588.63 : 89,134.95 = 36,294.25 : x
  2. Step 2: Convert to fraction form
    64,588.63/89,134.95 = 36,294.25/x
  3. Step 3: Cross multiply
    64,588.63x = 89,134.95 × 36,294.25
  4. Step 4: Simplify right side
    64,588.63x = 3,235,086,159.04
  5. Step 5: Solve for x
    x = 3,235,086,159.04/64,588.63
  6. Step 6: Final answer
    x = 50,087.55

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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.