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Finding the Fourth Proportional to 16,615.53, 22,935 and 9,903.26

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Solution

The fourth proportional to 16,615.53, 22,935 and 9,903.26 is: 13,669.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,615.53 : 22,935 = 9,903.26 : x
  2. Step 2: Convert to fraction form
    16,615.53/22,935 = 9,903.26/x
  3. Step 3: Cross multiply
    16,615.53x = 22,935 × 9,903.26
  4. Step 4: Simplify right side
    16,615.53x = 227,131,268.10
  5. Step 5: Solve for x
    x = 227,131,268.10/16,615.53
  6. Step 6: Final answer
    x = 13,669.82

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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.