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Finding the Fourth Proportional to 69,434.76, 95,813.12 and 38,802.20

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Solution

The fourth proportional to 69,434.76, 95,813.12 and 38,802.20 is: 53,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,434.76 : 95,813.12 = 38,802.20 : x
  2. Step 2: Convert to fraction form
    69,434.76/95,813.12 = 38,802.20/x
  3. Step 3: Cross multiply
    69,434.76x = 95,813.12 × 38,802.20
  4. Step 4: Simplify right side
    69,434.76x = 3,717,759,844.86
  5. Step 5: Solve for x
    x = 3,717,759,844.86/69,434.76
  6. Step 6: Final answer
    x = 53,543.21

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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.