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Finding the Fourth Proportional to 13,492.58, 18,619.86 and 7,524.64

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Solution

The fourth proportional to 13,492.58, 18,619.86 and 7,524.64 is: 10,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,492.58 : 18,619.86 = 7,524.64 : x
  2. Step 2: Convert to fraction form
    13,492.58/18,619.86 = 7,524.64/x
  3. Step 3: Cross multiply
    13,492.58x = 18,619.86 × 7,524.64
  4. Step 4: Simplify right side
    13,492.58x = 140,107,650.25
  5. Step 5: Solve for x
    x = 140,107,650.25/13,492.58
  6. Step 6: Final answer
    x = 10,384.05

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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.