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Finding the Fourth Proportional to 19,653.47, 27,122.28 and 10,701.47

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Solution

The fourth proportional to 19,653.47, 27,122.28 and 10,701.47 is: 14,768.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,653.47 : 27,122.28 = 10,701.47 : x
  2. Step 2: Convert to fraction form
    19,653.47/27,122.28 = 10,701.47/x
  3. Step 3: Cross multiply
    19,653.47x = 27,122.28 × 10,701.47
  4. Step 4: Simplify right side
    19,653.47x = 290,248,140.86
  5. Step 5: Solve for x
    x = 290,248,140.86/19,653.47
  6. Step 6: Final answer
    x = 14,768.29

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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.