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Finding the Fourth Proportional to 15,867.90, 23,800.05 and 4,182.03

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Solution

The fourth proportional to 15,867.90, 23,800.05 and 4,182.03 is: 6,272.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,867.90 : 23,800.05 = 4,182.03 : x
  2. Step 2: Convert to fraction form
    15,867.90/23,800.05 = 4,182.03/x
  3. Step 3: Cross multiply
    15,867.90x = 23,800.05 × 4,182.03
  4. Step 4: Simplify right side
    15,867.90x = 99,532,523.10
  5. Step 5: Solve for x
    x = 99,532,523.10/15,867.90
  6. Step 6: Final answer
    x = 6,272.57

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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.