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Finding the Fourth Proportional to 9,810.70, 14,694.45 and 8,082.70

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Solution

The fourth proportional to 9,810.70, 14,694.45 and 8,082.70 is: 12,106.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,810.70 : 14,694.45 = 8,082.70 : x
  2. Step 2: Convert to fraction form
    9,810.70/14,694.45 = 8,082.70/x
  3. Step 3: Cross multiply
    9,810.70x = 14,694.45 × 8,082.70
  4. Step 4: Simplify right side
    9,810.70x = 118,770,831.02
  5. Step 5: Solve for x
    x = 118,770,831.02/9,810.70
  6. Step 6: Final answer
    x = 12,106.25

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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.