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Finding the Fourth Proportional to 12,492.64, 18,733.28 and 4,695.92

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Solution

The fourth proportional to 12,492.64, 18,733.28 and 4,695.92 is: 7,041.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.64 : 18,733.28 = 4,695.92 : x
  2. Step 2: Convert to fraction form
    12,492.64/18,733.28 = 4,695.92/x
  3. Step 3: Cross multiply
    12,492.64x = 18,733.28 × 4,695.92
  4. Step 4: Simplify right side
    12,492.64x = 87,969,984.22
  5. Step 5: Solve for x
    x = 87,969,984.22/12,492.64
  6. Step 6: Final answer
    x = 7,041.74

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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.