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Finding the Fourth Proportional to 69,186.67, 95,467.06 and 38,970.08

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Solution

The fourth proportional to 69,186.67, 95,467.06 and 38,970.08 is: 53,772.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,186.67 : 95,467.06 = 38,970.08 : x
  2. Step 2: Convert to fraction form
    69,186.67/95,467.06 = 38,970.08/x
  3. Step 3: Cross multiply
    69,186.67x = 95,467.06 × 38,970.08
  4. Step 4: Simplify right side
    69,186.67x = 3,720,358,965.56
  5. Step 5: Solve for x
    x = 3,720,358,965.56/69,186.67
  6. Step 6: Final answer
    x = 53,772.77

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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.