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Finding the Fourth Proportional to 69,809.52, 96,320.76 and 39,588.24

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Solution

The fourth proportional to 69,809.52, 96,320.76 and 39,588.24 is: 54,622.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,809.52 : 96,320.76 = 39,588.24 : x
  2. Step 2: Convert to fraction form
    69,809.52/96,320.76 = 39,588.24/x
  3. Step 3: Cross multiply
    69,809.52x = 96,320.76 × 39,588.24
  4. Step 4: Simplify right side
    69,809.52x = 3,813,169,363.86
  5. Step 5: Solve for x
    x = 3,813,169,363.86/69,809.52
  6. Step 6: Final answer
    x = 54,622.48

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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.