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Finding the Fourth Proportional to 47,638.84, 71,407.84 and 16,018.80

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Solution

The fourth proportional to 47,638.84, 71,407.84 and 16,018.80 is: 24,011.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,638.84 : 71,407.84 = 16,018.80 : x
  2. Step 2: Convert to fraction form
    47,638.84/71,407.84 = 16,018.80/x
  3. Step 3: Cross multiply
    47,638.84x = 71,407.84 × 16,018.80
  4. Step 4: Simplify right side
    47,638.84x = 1,143,867,907.39
  5. Step 5: Solve for x
    x = 1,143,867,907.39/47,638.84
  6. Step 6: Final answer
    x = 24,011.25

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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.