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Finding the Fourth Proportional to 15,108.60, 22,662.90 and 5,746.45

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Solution

The fourth proportional to 15,108.60, 22,662.90 and 5,746.45 is: 8,619.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.60 : 22,662.90 = 5,746.45 : x
  2. Step 2: Convert to fraction form
    15,108.60/22,662.90 = 5,746.45/x
  3. Step 3: Cross multiply
    15,108.60x = 22,662.90 × 5,746.45
  4. Step 4: Simplify right side
    15,108.60x = 130,231,221.71
  5. Step 5: Solve for x
    x = 130,231,221.71/15,108.60
  6. Step 6: Final answer
    x = 8,619.68

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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.