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Finding the Fourth Proportional to 69,745.71, 96,247.05 and 39,533.81

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Solution

The fourth proportional to 69,745.71, 96,247.05 and 39,533.81 is: 54,555.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,745.71 : 96,247.05 = 39,533.81 : x
  2. Step 2: Convert to fraction form
    69,745.71/96,247.05 = 39,533.81/x
  3. Step 3: Cross multiply
    69,745.71x = 96,247.05 × 39,533.81
  4. Step 4: Simplify right side
    69,745.71x = 3,805,012,587.76
  5. Step 5: Solve for x
    x = 3,805,012,587.76/69,745.71
  6. Step 6: Final answer
    x = 54,555.51

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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.