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Finding the Fourth Proportional to 13,953.70, 20,931.92 and 4,593.68

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Solution

The fourth proportional to 13,953.70, 20,931.92 and 4,593.68 is: 6,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.70 : 20,931.92 = 4,593.68 : x
  2. Step 2: Convert to fraction form
    13,953.70/20,931.92 = 4,593.68/x
  3. Step 3: Cross multiply
    13,953.70x = 20,931.92 × 4,593.68
  4. Step 4: Simplify right side
    13,953.70x = 96,154,510.36
  5. Step 5: Solve for x
    x = 96,154,510.36/13,953.70
  6. Step 6: Final answer
    x = 6,890.97

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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.