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Finding the Fourth Proportional to 59,435.93, 89,149.46 and 21,978.50

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Solution

The fourth proportional to 59,435.93, 89,149.46 and 21,978.50 is: 32,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,435.93 : 89,149.46 = 21,978.50 : x
  2. Step 2: Convert to fraction form
    59,435.93/89,149.46 = 21,978.50/x
  3. Step 3: Cross multiply
    59,435.93x = 89,149.46 × 21,978.50
  4. Step 4: Simplify right side
    59,435.93x = 1,959,370,850.97
  5. Step 5: Solve for x
    x = 1,959,370,850.97/59,435.93
  6. Step 6: Final answer
    x = 32,966.10

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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.