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Finding the Fourth Proportional to 19,475.52, 26,885.16 and 12,761.52

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Solution

The fourth proportional to 19,475.52, 26,885.16 and 12,761.52 is: 17,616.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,475.52 : 26,885.16 = 12,761.52 : x
  2. Step 2: Convert to fraction form
    19,475.52/26,885.16 = 12,761.52/x
  3. Step 3: Cross multiply
    19,475.52x = 26,885.16 × 12,761.52
  4. Step 4: Simplify right side
    19,475.52x = 343,095,507.04
  5. Step 5: Solve for x
    x = 343,095,507.04/19,475.52
  6. Step 6: Final answer
    x = 17,616.76

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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.