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Finding the Fourth Proportional to 60,643.10, 90,964.65 and 18,523.10

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Solution

The fourth proportional to 60,643.10, 90,964.65 and 18,523.10 is: 27,784.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,643.10 : 90,964.65 = 18,523.10 : x
  2. Step 2: Convert to fraction form
    60,643.10/90,964.65 = 18,523.10/x
  3. Step 3: Cross multiply
    60,643.10x = 90,964.65 × 18,523.10
  4. Step 4: Simplify right side
    60,643.10x = 1,684,947,308.42
  5. Step 5: Solve for x
    x = 1,684,947,308.42/60,643.10
  6. Step 6: Final answer
    x = 27,784.65

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Similar ratio
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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.