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Finding the Fourth Proportional to 14,395.90, 19,874.80 and 9,926.32

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Solution

The fourth proportional to 14,395.90, 19,874.80 and 9,926.32 is: 13,704.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,395.90 : 19,874.80 = 9,926.32 : x
  2. Step 2: Convert to fraction form
    14,395.90/19,874.80 = 9,926.32/x
  3. Step 3: Cross multiply
    14,395.90x = 19,874.80 × 9,926.32
  4. Step 4: Simplify right side
    14,395.90x = 197,283,624.74
  5. Step 5: Solve for x
    x = 197,283,624.74/14,395.90
  6. Step 6: Final answer
    x = 13,704.15

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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.