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Finding the Fourth Proportional to 38,796.47, 53,539.19 and 22,029.47

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Solution

The fourth proportional to 38,796.47, 53,539.19 and 22,029.47 is: 30,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,796.47 : 53,539.19 = 22,029.47 : x
  2. Step 2: Convert to fraction form
    38,796.47/53,539.19 = 22,029.47/x
  3. Step 3: Cross multiply
    38,796.47x = 53,539.19 × 22,029.47
  4. Step 4: Simplify right side
    38,796.47x = 1,179,439,602.09
  5. Step 5: Solve for x
    x = 1,179,439,602.09/38,796.47
  6. Step 6: Final answer
    x = 30,400.70

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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.