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Finding the Fourth Proportional to 19,662.65, 27,134.95 and 10,710.63

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Solution

The fourth proportional to 19,662.65, 27,134.95 and 10,710.63 is: 14,780.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.65 : 27,134.95 = 10,710.63 : x
  2. Step 2: Convert to fraction form
    19,662.65/27,134.95 = 10,710.63/x
  3. Step 3: Cross multiply
    19,662.65x = 27,134.95 × 10,710.63
  4. Step 4: Simplify right side
    19,662.65x = 290,632,402.82
  5. Step 5: Solve for x
    x = 290,632,402.82/19,662.65
  6. Step 6: Final answer
    x = 14,780.94

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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.