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Finding the Fourth Proportional to 42,793.52, 64,193.52 and 11,628.32

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Solution

The fourth proportional to 42,793.52, 64,193.52 and 11,628.32 is: 17,443.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,793.52 : 64,193.52 = 11,628.32 : x
  2. Step 2: Convert to fraction form
    42,793.52/64,193.52 = 11,628.32/x
  3. Step 3: Cross multiply
    42,793.52x = 64,193.52 × 11,628.32
  4. Step 4: Simplify right side
    42,793.52x = 746,462,792.49
  5. Step 5: Solve for x
    x = 746,462,792.49/42,793.52
  6. Step 6: Final answer
    x = 17,443.36

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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.