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Finding the Fourth Proportional to 18,962.29, 28,446.81 and 6,483.70

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Solution

The fourth proportional to 18,962.29, 28,446.81 and 6,483.70 is: 9,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.29 : 28,446.81 = 6,483.70 : x
  2. Step 2: Convert to fraction form
    18,962.29/28,446.81 = 6,483.70/x
  3. Step 3: Cross multiply
    18,962.29x = 28,446.81 × 6,483.70
  4. Step 4: Simplify right side
    18,962.29x = 184,440,582.00
  5. Step 5: Solve for x
    x = 184,440,582.00/18,962.29
  6. Step 6: Final answer
    x = 9,726.70

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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.