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Finding the Fourth Proportional to 16,953.12, 25,425.12 and 7,090.38

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Solution

The fourth proportional to 16,953.12, 25,425.12 and 7,090.38 is: 10,633.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,953.12 : 25,425.12 = 7,090.38 : x
  2. Step 2: Convert to fraction form
    16,953.12/25,425.12 = 7,090.38/x
  3. Step 3: Cross multiply
    16,953.12x = 25,425.12 × 7,090.38
  4. Step 4: Simplify right side
    16,953.12x = 180,273,762.35
  5. Step 5: Solve for x
    x = 180,273,762.35/16,953.12
  6. Step 6: Final answer
    x = 10,633.66

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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.