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Finding the Fourth Proportional to 10,722.34, 14,797.65 and 6,746.86

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Solution

The fourth proportional to 10,722.34, 14,797.65 and 6,746.86 is: 9,311.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,722.34 : 14,797.65 = 6,746.86 : x
  2. Step 2: Convert to fraction form
    10,722.34/14,797.65 = 6,746.86/x
  3. Step 3: Cross multiply
    10,722.34x = 14,797.65 × 6,746.86
  4. Step 4: Simplify right side
    10,722.34x = 99,837,672.88
  5. Step 5: Solve for x
    x = 99,837,672.88/10,722.34
  6. Step 6: Final answer
    x = 9,311.18

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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.