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Finding the Fourth Proportional to 9,767.70, 13,485.54 and 7,525.32

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Solution

The fourth proportional to 9,767.70, 13,485.54 and 7,525.32 is: 10,389.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,767.70 : 13,485.54 = 7,525.32 : x
  2. Step 2: Convert to fraction form
    9,767.70/13,485.54 = 7,525.32/x
  3. Step 3: Cross multiply
    9,767.70x = 13,485.54 × 7,525.32
  4. Step 4: Simplify right side
    9,767.70x = 101,483,003.87
  5. Step 5: Solve for x
    x = 101,483,003.87/9,767.70
  6. Step 6: Final answer
    x = 10,389.65

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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.