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Finding the Fourth Proportional to 19,866.64, 27,414.16 and 10,914.16

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Solution

The fourth proportional to 19,866.64, 27,414.16 and 10,914.16 is: 15,060.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.64 : 27,414.16 = 10,914.16 : x
  2. Step 2: Convert to fraction form
    19,866.64/27,414.16 = 10,914.16/x
  3. Step 3: Cross multiply
    19,866.64x = 27,414.16 × 10,914.16
  4. Step 4: Simplify right side
    19,866.64x = 299,202,528.51
  5. Step 5: Solve for x
    x = 299,202,528.51/19,866.64
  6. Step 6: Final answer
    x = 15,060.55

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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.