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Finding the Fourth Proportional to 20,582.84, 28,404.20 and 11,630.48

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Solution

The fourth proportional to 20,582.84, 28,404.20 and 11,630.48 is: 16,050.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.84 : 28,404.20 = 11,630.48 : x
  2. Step 2: Convert to fraction form
    20,582.84/28,404.20 = 11,630.48/x
  3. Step 3: Cross multiply
    20,582.84x = 28,404.20 × 11,630.48
  4. Step 4: Simplify right side
    20,582.84x = 330,354,480.02
  5. Step 5: Solve for x
    x = 330,354,480.02/20,582.84
  6. Step 6: Final answer
    x = 16,050.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.