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Finding the Fourth Proportional to 29,066.19, 40,123.53 and 19,647.51

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Solution

The fourth proportional to 29,066.19, 40,123.53 and 19,647.51 is: 27,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,066.19 : 40,123.53 = 19,647.51 : x
  2. Step 2: Convert to fraction form
    29,066.19/40,123.53 = 19,647.51/x
  3. Step 3: Cross multiply
    29,066.19x = 40,123.53 × 19,647.51
  4. Step 4: Simplify right side
    29,066.19x = 788,327,456.91
  5. Step 5: Solve for x
    x = 788,327,456.91/29,066.19
  6. Step 6: Final answer
    x = 27,121.80

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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.