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Finding the Fourth Proportional to 70,072.98, 96,657.43 and 49,936.30

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Solution

The fourth proportional to 70,072.98, 96,657.43 and 49,936.30 is: 68,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,072.98 : 96,657.43 = 49,936.30 : x
  2. Step 2: Convert to fraction form
    70,072.98/96,657.43 = 49,936.30/x
  3. Step 3: Cross multiply
    70,072.98x = 96,657.43 × 49,936.30
  4. Step 4: Simplify right side
    70,072.98x = 4,826,714,421.71
  5. Step 5: Solve for x
    x = 4,826,714,421.71/70,072.98
  6. Step 6: Final answer
    x = 68,881.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.