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Finding the Fourth Proportional to 9,696.40, 14,525.40 and 9,005.20

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Solution

The fourth proportional to 9,696.40, 14,525.40 and 9,005.20 is: 13,489.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,696.40 : 14,525.40 = 9,005.20 : x
  2. Step 2: Convert to fraction form
    9,696.40/14,525.40 = 9,005.20/x
  3. Step 3: Cross multiply
    9,696.40x = 14,525.40 × 9,005.20
  4. Step 4: Simplify right side
    9,696.40x = 130,804,132.08
  5. Step 5: Solve for x
    x = 130,804,132.08/9,696.40
  6. Step 6: Final answer
    x = 13,489.97

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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.