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Finding the Fourth Proportional to 15,319.65, 22,981.05 and 4,226.34

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Solution

The fourth proportional to 15,319.65, 22,981.05 and 4,226.34 is: 6,339.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319.65 : 22,981.05 = 4,226.34 : x
  2. Step 2: Convert to fraction form
    15,319.65/22,981.05 = 4,226.34/x
  3. Step 3: Cross multiply
    15,319.65x = 22,981.05 × 4,226.34
  4. Step 4: Simplify right side
    15,319.65x = 97,125,730.86
  5. Step 5: Solve for x
    x = 97,125,730.86/15,319.65
  6. Step 6: Final answer
    x = 6,339.94

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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.