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Finding the Fourth Proportional to 18,031.60, 27,047.40 and 16,476.40

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Solution

The fourth proportional to 18,031.60, 27,047.40 and 16,476.40 is: 24,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,031.60 : 27,047.40 = 16,476.40 : x
  2. Step 2: Convert to fraction form
    18,031.60/27,047.40 = 16,476.40/x
  3. Step 3: Cross multiply
    18,031.60x = 27,047.40 × 16,476.40
  4. Step 4: Simplify right side
    18,031.60x = 445,643,781.36
  5. Step 5: Solve for x
    x = 445,643,781.36/18,031.60
  6. Step 6: Final answer
    x = 24,714.60

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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.