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Finding the Fourth Proportional to 18,304.71, 27,461.30 and 7,775.07

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Solution

The fourth proportional to 18,304.71, 27,461.30 and 7,775.07 is: 11,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,304.71 : 27,461.30 = 7,775.07 : x
  2. Step 2: Convert to fraction form
    18,304.71/27,461.30 = 7,775.07/x
  3. Step 3: Cross multiply
    18,304.71x = 27,461.30 × 7,775.07
  4. Step 4: Simplify right side
    18,304.71x = 213,513,490.92
  5. Step 5: Solve for x
    x = 213,513,490.92/18,304.71
  6. Step 6: Final answer
    x = 11,664.40

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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.