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Finding the Fourth Proportional to 14,246.80, 19,647.80 and 11,864.64

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Solution

The fourth proportional to 14,246.80, 19,647.80 and 11,864.64 is: 16,362.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,246.80 : 19,647.80 = 11,864.64 : x
  2. Step 2: Convert to fraction form
    14,246.80/19,647.80 = 11,864.64/x
  3. Step 3: Cross multiply
    14,246.80x = 19,647.80 × 11,864.64
  4. Step 4: Simplify right side
    14,246.80x = 233,114,132.64
  5. Step 5: Solve for x
    x = 233,114,132.64/14,246.80
  6. Step 6: Final answer
    x = 16,362.56

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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.