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Finding the Fourth Proportional to 17,809.47, 26,710.56 and 11,248.47

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Solution

The fourth proportional to 17,809.47, 26,710.56 and 11,248.47 is: 16,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,809.47 : 26,710.56 = 11,248.47 : x
  2. Step 2: Convert to fraction form
    17,809.47/26,710.56 = 11,248.47/x
  3. Step 3: Cross multiply
    17,809.47x = 26,710.56 × 11,248.47
  4. Step 4: Simplify right side
    17,809.47x = 300,452,932.84
  5. Step 5: Solve for x
    x = 300,452,932.84/17,809.47
  6. Step 6: Final answer
    x = 16,870.40

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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.