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Finding the Fourth Proportional to 55,843.30, 77,064.06 and 30,349.90

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Solution

The fourth proportional to 55,843.30, 77,064.06 and 30,349.90 is: 41,883.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,843.30 : 77,064.06 = 30,349.90 : x
  2. Step 2: Convert to fraction form
    55,843.30/77,064.06 = 30,349.90/x
  3. Step 3: Cross multiply
    55,843.30x = 77,064.06 × 30,349.90
  4. Step 4: Simplify right side
    55,843.30x = 2,338,886,514.59
  5. Step 5: Solve for x
    x = 2,338,886,514.59/55,843.30
  6. Step 6: Final answer
    x = 41,883.03

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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.