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Finding the Fourth Proportional to 18,592.76, 27,898.70 and 12,357.06

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Solution

The fourth proportional to 18,592.76, 27,898.70 and 12,357.06 is: 18,541.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,592.76 : 27,898.70 = 12,357.06 : x
  2. Step 2: Convert to fraction form
    18,592.76/27,898.70 = 12,357.06/x
  3. Step 3: Cross multiply
    18,592.76x = 27,898.70 × 12,357.06
  4. Step 4: Simplify right side
    18,592.76x = 344,745,848.04
  5. Step 5: Solve for x
    x = 344,745,848.04/18,592.76
  6. Step 6: Final answer
    x = 18,541.95

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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.