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Finding the Fourth Proportional to 14,793.21, 20,417.40 and 8,829.99

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Solution

The fourth proportional to 14,793.21, 20,417.40 and 8,829.99 is: 12,187.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,793.21 : 20,417.40 = 8,829.99 : x
  2. Step 2: Convert to fraction form
    14,793.21/20,417.40 = 8,829.99/x
  3. Step 3: Cross multiply
    14,793.21x = 20,417.40 × 8,829.99
  4. Step 4: Simplify right side
    14,793.21x = 180,285,437.83
  5. Step 5: Solve for x
    x = 180,285,437.83/14,793.21
  6. Step 6: Final answer
    x = 12,187.04

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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.