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Finding the Fourth Proportional to 14,618.90, 21,918.18 and 6,296.42

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Solution

The fourth proportional to 14,618.90, 21,918.18 and 6,296.42 is: 9,440.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.90 : 21,918.18 = 6,296.42 : x
  2. Step 2: Convert to fraction form
    14,618.90/21,918.18 = 6,296.42/x
  3. Step 3: Cross multiply
    14,618.90x = 21,918.18 × 6,296.42
  4. Step 4: Simplify right side
    14,618.90x = 138,006,066.92
  5. Step 5: Solve for x
    x = 138,006,066.92/14,618.90
  6. Step 6: Final answer
    x = 9,440.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.