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Finding the Fourth Proportional to 7,703.57, 11,499.63 and 6,769.40

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Solution

The fourth proportional to 7,703.57, 11,499.63 and 6,769.40 is: 10,105.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,703.57 : 11,499.63 = 6,769.40 : x
  2. Step 2: Convert to fraction form
    7,703.57/11,499.63 = 6,769.40/x
  3. Step 3: Cross multiply
    7,703.57x = 11,499.63 × 6,769.40
  4. Step 4: Simplify right side
    7,703.57x = 77,845,561.48
  5. Step 5: Solve for x
    x = 77,845,561.48/7,703.57
  6. Step 6: Final answer
    x = 10,105.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.