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Finding the Fourth Proportional to 19,392.66, 26,772.03 and 13,052.58

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Solution

The fourth proportional to 19,392.66, 26,772.03 and 13,052.58 is: 18,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392.66 : 26,772.03 = 13,052.58 : x
  2. Step 2: Convert to fraction form
    19,392.66/26,772.03 = 13,052.58/x
  3. Step 3: Cross multiply
    19,392.66x = 26,772.03 × 13,052.58
  4. Step 4: Simplify right side
    19,392.66x = 349,444,063.34
  5. Step 5: Solve for x
    x = 349,444,063.34/19,392.66
  6. Step 6: Final answer
    x = 18,019.40

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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.