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Finding the Fourth Proportional to 9,703.56, 13,391.22 and 5,728.08

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Solution

The fourth proportional to 9,703.56, 13,391.22 and 5,728.08 is: 7,904.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,703.56 : 13,391.22 = 5,728.08 : x
  2. Step 2: Convert to fraction form
    9,703.56/13,391.22 = 5,728.08/x
  3. Step 3: Cross multiply
    9,703.56x = 13,391.22 × 5,728.08
  4. Step 4: Simplify right side
    9,703.56x = 76,705,979.46
  5. Step 5: Solve for x
    x = 76,705,979.46/9,703.56
  6. Step 6: Final answer
    x = 7,904.93

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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.