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Finding the Fourth Proportional to 28,543.00, 42,818.60 and 8,823.09

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Solution

The fourth proportional to 28,543.00, 42,818.60 and 8,823.09 is: 13,235.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.00 : 42,818.60 = 8,823.09 : x
  2. Step 2: Convert to fraction form
    28,543.00/42,818.60 = 8,823.09/x
  3. Step 3: Cross multiply
    28,543.00x = 42,818.60 × 8,823.09
  4. Step 4: Simplify right side
    28,543.00x = 377,792,519.29
  5. Step 5: Solve for x
    x = 377,792,519.29/28,543.00
  6. Step 6: Final answer
    x = 13,235.91

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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.