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Finding the Fourth Proportional to 19,653.64, 27,122.69 and 10,701.28

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Solution

The fourth proportional to 19,653.64, 27,122.69 and 10,701.28 is: 14,768.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,653.64 : 27,122.69 = 10,701.28 : x
  2. Step 2: Convert to fraction form
    19,653.64/27,122.69 = 10,701.28/x
  3. Step 3: Cross multiply
    19,653.64x = 27,122.69 × 10,701.28
  4. Step 4: Simplify right side
    19,653.64x = 290,247,500.04
  5. Step 5: Solve for x
    x = 290,247,500.04/19,653.64
  6. Step 6: Final answer
    x = 14,768.13

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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.