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Finding the Fourth Proportional to 9,665.13, 14,478.81 and 6,662.63

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Solution

The fourth proportional to 9,665.13, 14,478.81 and 6,662.63 is: 9,980.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,665.13 : 14,478.81 = 6,662.63 : x
  2. Step 2: Convert to fraction form
    9,665.13/14,478.81 = 6,662.63/x
  3. Step 3: Cross multiply
    9,665.13x = 14,478.81 × 6,662.63
  4. Step 4: Simplify right side
    9,665.13x = 96,466,881.48
  5. Step 5: Solve for x
    x = 96,466,881.48/9,665.13
  6. Step 6: Final answer
    x = 9,980.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.