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Finding the Fourth Proportional to 18,601.45, 27,902.18 and 4,750.45

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Solution

The fourth proportional to 18,601.45, 27,902.18 and 4,750.45 is: 7,125.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.45 : 27,902.18 = 4,750.45 : x
  2. Step 2: Convert to fraction form
    18,601.45/27,902.18 = 4,750.45/x
  3. Step 3: Cross multiply
    18,601.45x = 27,902.18 × 4,750.45
  4. Step 4: Simplify right side
    18,601.45x = 132,547,853.10
  5. Step 5: Solve for x
    x = 132,547,853.10/18,601.45
  6. Step 6: Final answer
    x = 7,125.67

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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.