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Finding the Fourth Proportional to 31,258.68, 46,853.62 and 15,440.29

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Solution

The fourth proportional to 31,258.68, 46,853.62 and 15,440.29 is: 23,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,258.68 : 46,853.62 = 15,440.29 : x
  2. Step 2: Convert to fraction form
    31,258.68/46,853.62 = 15,440.29/x
  3. Step 3: Cross multiply
    31,258.68x = 46,853.62 × 15,440.29
  4. Step 4: Simplify right side
    31,258.68x = 723,433,587.67
  5. Step 5: Solve for x
    x = 723,433,587.67/31,258.68
  6. Step 6: Final answer
    x = 23,143.45

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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.