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Finding the Fourth Proportional to 19,662.64, 27,134.49 and 10,710.19

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Solution

The fourth proportional to 19,662.64, 27,134.49 and 10,710.19 is: 14,780.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.64 : 27,134.49 = 10,710.19 : x
  2. Step 2: Convert to fraction form
    19,662.64/27,134.49 = 10,710.19/x
  3. Step 3: Cross multiply
    19,662.64x = 27,134.49 × 10,710.19
  4. Step 4: Simplify right side
    19,662.64x = 290,615,543.45
  5. Step 5: Solve for x
    x = 290,615,543.45/19,662.64
  6. Step 6: Final answer
    x = 14,780.09

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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.