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Finding the Fourth Proportional to 14,053.92, 19,392.84 and 7,764.72

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Solution

The fourth proportional to 14,053.92, 19,392.84 and 7,764.72 is: 10,714.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,053.92 : 19,392.84 = 7,764.72 : x
  2. Step 2: Convert to fraction form
    14,053.92/19,392.84 = 7,764.72/x
  3. Step 3: Cross multiply
    14,053.92x = 19,392.84 × 7,764.72
  4. Step 4: Simplify right side
    14,053.92x = 150,579,972.60
  5. Step 5: Solve for x
    x = 150,579,972.60/14,053.92
  6. Step 6: Final answer
    x = 10,714.45

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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.