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Finding the Fourth Proportional to 62,818.04, 86,653.82 and 38,602.20

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Solution

The fourth proportional to 62,818.04, 86,653.82 and 38,602.20 is: 53,249.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,818.04 : 86,653.82 = 38,602.20 : x
  2. Step 2: Convert to fraction form
    62,818.04/86,653.82 = 38,602.20/x
  3. Step 3: Cross multiply
    62,818.04x = 86,653.82 × 38,602.20
  4. Step 4: Simplify right side
    62,818.04x = 3,345,028,193.37
  5. Step 5: Solve for x
    x = 3,345,028,193.37/62,818.04
  6. Step 6: Final answer
    x = 53,249.48

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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.