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Finding the Fourth Proportional to 18,541.64, 27,870.78 and 16,106.78

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Solution

The fourth proportional to 18,541.64, 27,870.78 and 16,106.78 is: 24,210.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,541.64 : 27,870.78 = 16,106.78 : x
  2. Step 2: Convert to fraction form
    18,541.64/27,870.78 = 16,106.78/x
  3. Step 3: Cross multiply
    18,541.64x = 27,870.78 × 16,106.78
  4. Step 4: Simplify right side
    18,541.64x = 448,908,521.89
  5. Step 5: Solve for x
    x = 448,908,521.89/18,541.64
  6. Step 6: Final answer
    x = 24,210.83

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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.