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Finding the Fourth Proportional to 13,468.96, 18,588 and 7,501.60

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Solution

The fourth proportional to 13,468.96, 18,588 and 7,501.60 is: 10,352.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,468.96 : 18,588 = 7,501.60 : x
  2. Step 2: Convert to fraction form
    13,468.96/18,588 = 7,501.60/x
  3. Step 3: Cross multiply
    13,468.96x = 18,588 × 7,501.60
  4. Step 4: Simplify right side
    13,468.96x = 139,439,740.80
  5. Step 5: Solve for x
    x = 139,439,740.80/13,468.96
  6. Step 6: Final answer
    x = 10,352.67

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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.