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Finding the Fourth Proportional to 10,662.01, 14,722.86 and 6,689.95

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Solution

The fourth proportional to 10,662.01, 14,722.86 and 6,689.95 is: 9,237.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,662.01 : 14,722.86 = 6,689.95 : x
  2. Step 2: Convert to fraction form
    10,662.01/14,722.86 = 6,689.95/x
  3. Step 3: Cross multiply
    10,662.01x = 14,722.86 × 6,689.95
  4. Step 4: Simplify right side
    10,662.01x = 98,495,197.26
  5. Step 5: Solve for x
    x = 98,495,197.26/10,662.01
  6. Step 6: Final answer
    x = 9,237.96

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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.