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Finding the Fourth Proportional to 13,595.85, 18,763.08 and 7,627.86

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Solution

The fourth proportional to 13,595.85, 18,763.08 and 7,627.86 is: 10,526.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,595.85 : 18,763.08 = 7,627.86 : x
  2. Step 2: Convert to fraction form
    13,595.85/18,763.08 = 7,627.86/x
  3. Step 3: Cross multiply
    13,595.85x = 18,763.08 × 7,627.86
  4. Step 4: Simplify right side
    13,595.85x = 143,122,147.41
  5. Step 5: Solve for x
    x = 143,122,147.41/13,595.85
  6. Step 6: Final answer
    x = 10,526.90

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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.