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Finding the Fourth Proportional to 42,059.73, 63,065.95 and 13,964.74

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Solution

The fourth proportional to 42,059.73, 63,065.95 and 13,964.74 is: 20,939.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,059.73 : 63,065.95 = 13,964.74 : x
  2. Step 2: Convert to fraction form
    42,059.73/63,065.95 = 13,964.74/x
  3. Step 3: Cross multiply
    42,059.73x = 63,065.95 × 13,964.74
  4. Step 4: Simplify right side
    42,059.73x = 880,699,705.70
  5. Step 5: Solve for x
    x = 880,699,705.70/42,059.73
  6. Step 6: Final answer
    x = 20,939.26

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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.