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Finding the Fourth Proportional to 18,963.03, 28,444.53 and 6,483.15

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Solution

The fourth proportional to 18,963.03, 28,444.53 and 6,483.15 is: 9,724.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.03 : 28,444.53 = 6,483.15 : x
  2. Step 2: Convert to fraction form
    18,963.03/28,444.53 = 6,483.15/x
  3. Step 3: Cross multiply
    18,963.03x = 28,444.53 × 6,483.15
  4. Step 4: Simplify right side
    18,963.03x = 184,410,154.67
  5. Step 5: Solve for x
    x = 184,410,154.67/18,963.03
  6. Step 6: Final answer
    x = 9,724.72

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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.