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Finding the Fourth Proportional to 45,013.50, 67,507.74 and 16,931.34

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Solution

The fourth proportional to 45,013.50, 67,507.74 and 16,931.34 is: 25,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,013.50 : 67,507.74 = 16,931.34 : x
  2. Step 2: Convert to fraction form
    45,013.50/67,507.74 = 16,931.34/x
  3. Step 3: Cross multiply
    45,013.50x = 67,507.74 × 16,931.34
  4. Step 4: Simplify right side
    45,013.50x = 1,142,996,498.57
  5. Step 5: Solve for x
    x = 1,142,996,498.57/45,013.50
  6. Step 6: Final answer
    x = 25,392.30

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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.