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Finding the Fourth Proportional to 70,846.84, 97,764.90 and 40,630.60

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Solution

The fourth proportional to 70,846.84, 97,764.90 and 40,630.60 is: 56,068.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,846.84 : 97,764.90 = 40,630.60 : x
  2. Step 2: Convert to fraction form
    70,846.84/97,764.90 = 40,630.60/x
  3. Step 3: Cross multiply
    70,846.84x = 97,764.90 × 40,630.60
  4. Step 4: Simplify right side
    70,846.84x = 3,972,246,545.94
  5. Step 5: Solve for x
    x = 3,972,246,545.94/70,846.84
  6. Step 6: Final answer
    x = 56,068.08

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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.