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Finding the Fourth Proportional to 73,585.40, 110,378.10 and 18,181.40

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Solution

The fourth proportional to 73,585.40, 110,378.10 and 18,181.40 is: 27,272.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,585.40 : 110,378.10 = 18,181.40 : x
  2. Step 2: Convert to fraction form
    73,585.40/110,378.10 = 18,181.40/x
  3. Step 3: Cross multiply
    73,585.40x = 110,378.10 × 18,181.40
  4. Step 4: Simplify right side
    73,585.40x = 2,006,828,387.34
  5. Step 5: Solve for x
    x = 2,006,828,387.34/73,585.40
  6. Step 6: Final answer
    x = 27,272.10

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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.