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Finding the Fourth Proportional to 9,614.70, 13,240.80 and 6,957.90

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Solution

The fourth proportional to 9,614.70, 13,240.80 and 6,957.90 is: 9,582.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,614.70 : 13,240.80 = 6,957.90 : x
  2. Step 2: Convert to fraction form
    9,614.70/13,240.80 = 6,957.90/x
  3. Step 3: Cross multiply
    9,614.70x = 13,240.80 × 6,957.90
  4. Step 4: Simplify right side
    9,614.70x = 92,128,162.32
  5. Step 5: Solve for x
    x = 92,128,162.32/9,614.70
  6. Step 6: Final answer
    x = 9,582.01

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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.