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Finding the Fourth Proportional to 19,663.68, 27,137.16 and 14,898.08

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Solution

The fourth proportional to 19,663.68, 27,137.16 and 14,898.08 is: 20,560.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,663.68 : 27,137.16 = 14,898.08 : x
  2. Step 2: Convert to fraction form
    19,663.68/27,137.16 = 14,898.08/x
  3. Step 3: Cross multiply
    19,663.68x = 27,137.16 × 14,898.08
  4. Step 4: Simplify right side
    19,663.68x = 404,291,580.65
  5. Step 5: Solve for x
    x = 404,291,580.65/19,663.68
  6. Step 6: Final answer
    x = 20,560.32

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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.