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Finding the Fourth Proportional to 11,492.73, 15,860.39 and 6,457.05

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Solution

The fourth proportional to 11,492.73, 15,860.39 and 6,457.05 is: 8,910.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,492.73 : 15,860.39 = 6,457.05 : x
  2. Step 2: Convert to fraction form
    11,492.73/15,860.39 = 6,457.05/x
  3. Step 3: Cross multiply
    11,492.73x = 15,860.39 × 6,457.05
  4. Step 4: Simplify right side
    11,492.73x = 102,411,298.96
  5. Step 5: Solve for x
    x = 102,411,298.96/11,492.73
  6. Step 6: Final answer
    x = 8,910.96

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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.