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Finding the Fourth Proportional to 13,468.38, 18,587.38 and 7,804.66

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Solution

The fourth proportional to 13,468.38, 18,587.38 and 7,804.66 is: 10,771.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,468.38 : 18,587.38 = 7,804.66 : x
  2. Step 2: Convert to fraction form
    13,468.38/18,587.38 = 7,804.66/x
  3. Step 3: Cross multiply
    13,468.38x = 18,587.38 × 7,804.66
  4. Step 4: Simplify right side
    13,468.38x = 145,068,181.19
  5. Step 5: Solve for x
    x = 145,068,181.19/13,468.38
  6. Step 6: Final answer
    x = 10,771.02

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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.