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Finding the Fourth Proportional to 29,063.19, 40,119.39 and 19,644.51

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Solution

The fourth proportional to 29,063.19, 40,119.39 and 19,644.51 is: 27,117.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,063.19 : 40,119.39 = 19,644.51 : x
  2. Step 2: Convert to fraction form
    29,063.19/40,119.39 = 19,644.51/x
  3. Step 3: Cross multiply
    29,063.19x = 40,119.39 × 19,644.51
  4. Step 4: Simplify right side
    29,063.19x = 788,125,758.05
  5. Step 5: Solve for x
    x = 788,125,758.05/29,063.19
  6. Step 6: Final answer
    x = 27,117.66

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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.