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Finding the Fourth Proportional to 19,652.58, 27,118.21 and 11,580.12

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Solution

The fourth proportional to 19,652.58, 27,118.21 and 11,580.12 is: 15,979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,652.58 : 27,118.21 = 11,580.12 : x
  2. Step 2: Convert to fraction form
    19,652.58/27,118.21 = 11,580.12/x
  3. Step 3: Cross multiply
    19,652.58x = 27,118.21 × 11,580.12
  4. Step 4: Simplify right side
    19,652.58x = 314,031,966.39
  5. Step 5: Solve for x
    x = 314,031,966.39/19,652.58
  6. Step 6: Final answer
    x = 15,979.18

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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.