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Finding the Fourth Proportional to 64,315.83, 88,753.28 and 36,020.07

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Solution

The fourth proportional to 64,315.83, 88,753.28 and 36,020.07 is: 49,706.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,315.83 : 88,753.28 = 36,020.07 : x
  2. Step 2: Convert to fraction form
    64,315.83/88,753.28 = 36,020.07/x
  3. Step 3: Cross multiply
    64,315.83x = 88,753.28 × 36,020.07
  4. Step 4: Simplify right side
    64,315.83x = 3,196,899,178.23
  5. Step 5: Solve for x
    x = 3,196,899,178.23/64,315.83
  6. Step 6: Final answer
    x = 49,706.26

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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.