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Finding the Fourth Proportional to 13,598.34, 20,401.16 and 10,835.44

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Solution

The fourth proportional to 13,598.34, 20,401.16 and 10,835.44 is: 16,256.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,598.34 : 20,401.16 = 10,835.44 : x
  2. Step 2: Convert to fraction form
    13,598.34/20,401.16 = 10,835.44/x
  3. Step 3: Cross multiply
    13,598.34x = 20,401.16 × 10,835.44
  4. Step 4: Simplify right side
    13,598.34x = 221,055,545.11
  5. Step 5: Solve for x
    x = 221,055,545.11/13,598.34
  6. Step 6: Final answer
    x = 16,256.07

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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.