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Finding the Fourth Proportional to 62,703.78, 86,530.08 and 35,479.62

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Solution

The fourth proportional to 62,703.78, 86,530.08 and 35,479.62 is: 48,961.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,703.78 : 86,530.08 = 35,479.62 : x
  2. Step 2: Convert to fraction form
    62,703.78/86,530.08 = 35,479.62/x
  3. Step 3: Cross multiply
    62,703.78x = 86,530.08 × 35,479.62
  4. Step 4: Simplify right side
    62,703.78x = 3,070,054,356.97
  5. Step 5: Solve for x
    x = 3,070,054,356.97/62,703.78
  6. Step 6: Final answer
    x = 48,961.23

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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.