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Finding the Fourth Proportional to 10,606.64, 14,636.04 and 6,129.68

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Solution

The fourth proportional to 10,606.64, 14,636.04 and 6,129.68 is: 8,458.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,606.64 : 14,636.04 = 6,129.68 : x
  2. Step 2: Convert to fraction form
    10,606.64/14,636.04 = 6,129.68/x
  3. Step 3: Cross multiply
    10,606.64x = 14,636.04 × 6,129.68
  4. Step 4: Simplify right side
    10,606.64x = 89,714,241.67
  5. Step 5: Solve for x
    x = 89,714,241.67/10,606.64
  6. Step 6: Final answer
    x = 8,458.31

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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.