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Finding the Fourth Proportional to 59,853.65, 89,800.99 and 20,438.45

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Solution

The fourth proportional to 59,853.65, 89,800.99 and 20,438.45 is: 30,664.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,853.65 : 89,800.99 = 20,438.45 : x
  2. Step 2: Convert to fraction form
    59,853.65/89,800.99 = 20,438.45/x
  3. Step 3: Cross multiply
    59,853.65x = 89,800.99 × 20,438.45
  4. Step 4: Simplify right side
    59,853.65x = 1,835,392,543.96
  5. Step 5: Solve for x
    x = 1,835,392,543.96/59,853.65
  6. Step 6: Final answer
    x = 30,664.67

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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.