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Finding the Fourth Proportional to 84,853.98, 127,294.74 and 28,697.51

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Solution

The fourth proportional to 84,853.98, 127,294.74 and 28,697.51 is: 43,050.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,853.98 : 127,294.74 = 28,697.51 : x
  2. Step 2: Convert to fraction form
    84,853.98/127,294.74 = 28,697.51/x
  3. Step 3: Cross multiply
    84,853.98x = 127,294.74 × 28,697.51
  4. Step 4: Simplify right side
    84,853.98x = 3,653,042,392.33
  5. Step 5: Solve for x
    x = 3,653,042,392.33/84,853.98
  6. Step 6: Final answer
    x = 43,050.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.