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Finding the Fourth Proportional to 17,927.10, 26,890.65 and 13,698.90

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Solution

The fourth proportional to 17,927.10, 26,890.65 and 13,698.90 is: 20,548.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,927.10 : 26,890.65 = 13,698.90 : x
  2. Step 2: Convert to fraction form
    17,927.10/26,890.65 = 13,698.90/x
  3. Step 3: Cross multiply
    17,927.10x = 26,890.65 × 13,698.90
  4. Step 4: Simplify right side
    17,927.10x = 368,372,325.29
  5. Step 5: Solve for x
    x = 368,372,325.29/17,927.10
  6. Step 6: Final answer
    x = 20,548.35

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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.