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Finding the Fourth Proportional to 64,588.88, 89,141 and 36,294.57

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Solution

The fourth proportional to 64,588.88, 89,141 and 36,294.57 is: 50,091.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,588.88 : 89,141 = 36,294.57 : x
  2. Step 2: Convert to fraction form
    64,588.88/89,141 = 36,294.57/x
  3. Step 3: Cross multiply
    64,588.88x = 89,141 × 36,294.57
  4. Step 4: Simplify right side
    64,588.88x = 3,235,333,818.67
  5. Step 5: Solve for x
    x = 3,235,333,818.67/64,588.88
  6. Step 6: Final answer
    x = 50,091.19

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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.