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Finding the Fourth Proportional to 12,763.71, 19,097.42 and 11,468.79

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Solution

The fourth proportional to 12,763.71, 19,097.42 and 11,468.79 is: 17,159.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.71 : 19,097.42 = 11,468.79 : x
  2. Step 2: Convert to fraction form
    12,763.71/19,097.42 = 11,468.79/x
  3. Step 3: Cross multiply
    12,763.71x = 19,097.42 × 11,468.79
  4. Step 4: Simplify right side
    12,763.71x = 219,024,242.18
  5. Step 5: Solve for x
    x = 219,024,242.18/12,763.71
  6. Step 6: Final answer
    x = 17,159.92

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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.