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Finding the Fourth Proportional to 19,561.01, 26,994.01 and 11,064.79

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Solution

The fourth proportional to 19,561.01, 26,994.01 and 11,064.79 is: 15,269.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.01 : 26,994.01 = 11,064.79 : x
  2. Step 2: Convert to fraction form
    19,561.01/26,994.01 = 11,064.79/x
  3. Step 3: Cross multiply
    19,561.01x = 26,994.01 × 11,064.79
  4. Step 4: Simplify right side
    19,561.01x = 298,683,051.91
  5. Step 5: Solve for x
    x = 298,683,051.91/19,561.01
  6. Step 6: Final answer
    x = 15,269.31

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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.