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Finding the Fourth Proportional to 14,052.78, 19,392.08 and 7,764.75

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Solution

The fourth proportional to 14,052.78, 19,392.08 and 7,764.75 is: 10,714.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,052.78 : 19,392.08 = 7,764.75 : x
  2. Step 2: Convert to fraction form
    14,052.78/19,392.08 = 7,764.75/x
  3. Step 3: Cross multiply
    14,052.78x = 19,392.08 × 7,764.75
  4. Step 4: Simplify right side
    14,052.78x = 150,574,614.36
  5. Step 5: Solve for x
    x = 150,574,614.36/14,052.78
  6. Step 6: Final answer
    x = 10,714.93

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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.