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Finding the Fourth Proportional to 13,713.46, 18,929.20 and 9,746.12

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Solution

The fourth proportional to 13,713.46, 18,929.20 and 9,746.12 is: 13,452.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.46 : 18,929.20 = 9,746.12 : x
  2. Step 2: Convert to fraction form
    13,713.46/18,929.20 = 9,746.12/x
  3. Step 3: Cross multiply
    13,713.46x = 18,929.20 × 9,746.12
  4. Step 4: Simplify right side
    13,713.46x = 184,486,254.70
  5. Step 5: Solve for x
    x = 184,486,254.70/13,713.46
  6. Step 6: Final answer
    x = 13,452.93

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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.