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Finding the Fourth Proportional to 28,599.44, 42,881.80 and 12,801.52

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Solution

The fourth proportional to 28,599.44, 42,881.80 and 12,801.52 is: 19,194.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,599.44 : 42,881.80 = 12,801.52 : x
  2. Step 2: Convert to fraction form
    28,599.44/42,881.80 = 12,801.52/x
  3. Step 3: Cross multiply
    28,599.44x = 42,881.80 × 12,801.52
  4. Step 4: Simplify right side
    28,599.44x = 548,952,220.34
  5. Step 5: Solve for x
    x = 548,952,220.34/28,599.44
  6. Step 6: Final answer
    x = 19,194.51

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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.