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Finding the Fourth Proportional to 42,010.92, 63,026.18 and 13,928.92

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Solution

The fourth proportional to 42,010.92, 63,026.18 and 13,928.92 is: 20,896.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,010.92 : 63,026.18 = 13,928.92 : x
  2. Step 2: Convert to fraction form
    42,010.92/63,026.18 = 13,928.92/x
  3. Step 3: Cross multiply
    42,010.92x = 63,026.18 × 13,928.92
  4. Step 4: Simplify right side
    42,010.92x = 877,886,619.13
  5. Step 5: Solve for x
    x = 877,886,619.13/42,010.92
  6. Step 6: Final answer
    x = 20,896.63

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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.