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Finding the Fourth Proportional to 10,627.63, 14,669.79 and 6,435.88

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Solution

The fourth proportional to 10,627.63, 14,669.79 and 6,435.88 is: 8,883.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,627.63 : 14,669.79 = 6,435.88 : x
  2. Step 2: Convert to fraction form
    10,627.63/14,669.79 = 6,435.88/x
  3. Step 3: Cross multiply
    10,627.63x = 14,669.79 × 6,435.88
  4. Step 4: Simplify right side
    10,627.63x = 94,413,008.07
  5. Step 5: Solve for x
    x = 94,413,008.07/10,627.63
  6. Step 6: Final answer
    x = 8,883.73

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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.