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Finding the Fourth Proportional to 13,461.58, 18,577.11 and 7,493.38

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Solution

The fourth proportional to 13,461.58, 18,577.11 and 7,493.38 is: 10,340.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.58 : 18,577.11 = 7,493.38 : x
  2. Step 2: Convert to fraction form
    13,461.58/18,577.11 = 7,493.38/x
  3. Step 3: Cross multiply
    13,461.58x = 18,577.11 × 7,493.38
  4. Step 4: Simplify right side
    13,461.58x = 139,205,357.47
  5. Step 5: Solve for x
    x = 139,205,357.47/13,461.58
  6. Step 6: Final answer
    x = 10,340.94

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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.