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Finding the Fourth Proportional to 51,223.98, 70,644.90 and 33,312.48

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Solution

The fourth proportional to 51,223.98, 70,644.90 and 33,312.48 is: 45,942.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,223.98 : 70,644.90 = 33,312.48 : x
  2. Step 2: Convert to fraction form
    51,223.98/70,644.90 = 33,312.48/x
  3. Step 3: Cross multiply
    51,223.98x = 70,644.90 × 33,312.48
  4. Step 4: Simplify right side
    51,223.98x = 2,353,356,818.35
  5. Step 5: Solve for x
    x = 2,353,356,818.35/51,223.98
  6. Step 6: Final answer
    x = 45,942.48

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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.