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Finding the Fourth Proportional to 18,555.61, 27,837.06 and 6,868.93

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Solution

The fourth proportional to 18,555.61, 27,837.06 and 6,868.93 is: 10,304.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.61 : 27,837.06 = 6,868.93 : x
  2. Step 2: Convert to fraction form
    18,555.61/27,837.06 = 6,868.93/x
  3. Step 3: Cross multiply
    18,555.61x = 27,837.06 × 6,868.93
  4. Step 4: Simplify right side
    18,555.61x = 191,210,816.55
  5. Step 5: Solve for x
    x = 191,210,816.55/18,555.61
  6. Step 6: Final answer
    x = 10,304.74

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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.