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Finding the Fourth Proportional to 14,995.74, 20,697.27 and 8,707.74

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Solution

The fourth proportional to 14,995.74, 20,697.27 and 8,707.74 is: 12,018.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,995.74 : 20,697.27 = 8,707.74 : x
  2. Step 2: Convert to fraction form
    14,995.74/20,697.27 = 8,707.74/x
  3. Step 3: Cross multiply
    14,995.74x = 20,697.27 × 8,707.74
  4. Step 4: Simplify right side
    14,995.74x = 180,226,445.87
  5. Step 5: Solve for x
    x = 180,226,445.87/14,995.74
  6. Step 6: Final answer
    x = 12,018.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.