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Finding the Fourth Proportional to 69,079.51, 95,328.67 and 38,864.82

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Solution

The fourth proportional to 69,079.51, 95,328.67 and 38,864.82 is: 53,632.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,079.51 : 95,328.67 = 38,864.82 : x
  2. Step 2: Convert to fraction form
    69,079.51/95,328.67 = 38,864.82/x
  3. Step 3: Cross multiply
    69,079.51x = 95,328.67 × 38,864.82
  4. Step 4: Simplify right side
    69,079.51x = 3,704,931,600.39
  5. Step 5: Solve for x
    x = 3,704,931,600.39/69,079.51
  6. Step 6: Final answer
    x = 53,632.86

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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.