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Finding the Fourth Proportional to 64,864.82, 89,513.30 and 36,570.30

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Solution

The fourth proportional to 64,864.82, 89,513.30 and 36,570.30 is: 50,466.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,864.82 : 89,513.30 = 36,570.30 : x
  2. Step 2: Convert to fraction form
    64,864.82/89,513.30 = 36,570.30/x
  3. Step 3: Cross multiply
    64,864.82x = 89,513.30 × 36,570.30
  4. Step 4: Simplify right side
    64,864.82x = 3,273,528,234.99
  5. Step 5: Solve for x
    x = 3,273,528,234.99/64,864.82
  6. Step 6: Final answer
    x = 50,466.93

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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.