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Finding the Fourth Proportional to 19,614.81, 27,068.62 and 10,662.34

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Solution

The fourth proportional to 19,614.81, 27,068.62 and 10,662.34 is: 14,714.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,614.81 : 27,068.62 = 10,662.34 : x
  2. Step 2: Convert to fraction form
    19,614.81/27,068.62 = 10,662.34/x
  3. Step 3: Cross multiply
    19,614.81x = 27,068.62 × 10,662.34
  4. Step 4: Simplify right side
    19,614.81x = 288,614,641.12
  5. Step 5: Solve for x
    x = 288,614,641.12/19,614.81
  6. Step 6: Final answer
    x = 14,714.12

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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.