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Finding the Fourth Proportional to 19,297.60, 26,630.56 and 10,914.08

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Solution

The fourth proportional to 19,297.60, 26,630.56 and 10,914.08 is: 15,061.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,297.60 : 26,630.56 = 10,914.08 : x
  2. Step 2: Convert to fraction form
    19,297.60/26,630.56 = 10,914.08/x
  3. Step 3: Cross multiply
    19,297.60x = 26,630.56 × 10,914.08
  4. Step 4: Simplify right side
    19,297.60x = 290,648,062.28
  5. Step 5: Solve for x
    x = 290,648,062.28/19,297.60
  6. Step 6: Final answer
    x = 15,061.36

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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.