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Finding the Fourth Proportional to 52,587, 78,883.06 and 15,651.32

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Solution

The fourth proportional to 52,587, 78,883.06 and 15,651.32 is: 23,477.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,587 : 78,883.06 = 15,651.32 : x
  2. Step 2: Convert to fraction form
    52,587/78,883.06 = 15,651.32/x
  3. Step 3: Cross multiply
    52,587x = 78,883.06 × 15,651.32
  4. Step 4: Simplify right side
    52,587x = 1,234,624,014.64
  5. Step 5: Solve for x
    x = 1,234,624,014.64/52,587
  6. Step 6: Final answer
    x = 23,477.74

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Why These Related Problems?

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