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Finding the Fourth Proportional to 13,925.58, 20,860.52 and 8,375.86

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Solution

The fourth proportional to 13,925.58, 20,860.52 and 8,375.86 is: 12,547.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.58 : 20,860.52 = 8,375.86 : x
  2. Step 2: Convert to fraction form
    13,925.58/20,860.52 = 8,375.86/x
  3. Step 3: Cross multiply
    13,925.58x = 20,860.52 × 8,375.86
  4. Step 4: Simplify right side
    13,925.58x = 174,724,795.05
  5. Step 5: Solve for x
    x = 174,724,795.05/13,925.58
  6. Step 6: Final answer
    x = 12,547.04

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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.