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Finding the Fourth Proportional to 5,154.54, 7,731.66 and 1,258.86

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Solution

The fourth proportional to 5,154.54, 7,731.66 and 1,258.86 is: 1,888.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.54 : 7,731.66 = 1,258.86 : x
  2. Step 2: Convert to fraction form
    5,154.54/7,731.66 = 1,258.86/x
  3. Step 3: Cross multiply
    5,154.54x = 7,731.66 × 1,258.86
  4. Step 4: Simplify right side
    5,154.54x = 9,733,077.51
  5. Step 5: Solve for x
    x = 9,733,077.51/5,154.54
  6. Step 6: Final answer
    x = 1,888.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.