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Finding the Fourth Proportional to 24,678.76, 36,990.60 and 9,867.12

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Solution

The fourth proportional to 24,678.76, 36,990.60 and 9,867.12 is: 14,789.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,678.76 : 36,990.60 = 9,867.12 : x
  2. Step 2: Convert to fraction form
    24,678.76/36,990.60 = 9,867.12/x
  3. Step 3: Cross multiply
    24,678.76x = 36,990.60 × 9,867.12
  4. Step 4: Simplify right side
    24,678.76x = 364,990,689.07
  5. Step 5: Solve for x
    x = 364,990,689.07/24,678.76
  6. Step 6: Final answer
    x = 14,789.67

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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.