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Finding the Fourth Proportional to 19,293.98, 26,630.90 and 11,341.49

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Solution

The fourth proportional to 19,293.98, 26,630.90 and 11,341.49 is: 15,654.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,293.98 : 26,630.90 = 11,341.49 : x
  2. Step 2: Convert to fraction form
    19,293.98/26,630.90 = 11,341.49/x
  3. Step 3: Cross multiply
    19,293.98x = 26,630.90 × 11,341.49
  4. Step 4: Simplify right side
    19,293.98x = 302,033,896.18
  5. Step 5: Solve for x
    x = 302,033,896.18/19,293.98
  6. Step 6: Final answer
    x = 15,654.31

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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.