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Finding the Fourth Proportional to 12,671.55, 19,002.51 and 5,070.51

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Solution

The fourth proportional to 12,671.55, 19,002.51 and 5,070.51 is: 7,603.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.55 : 19,002.51 = 5,070.51 : x
  2. Step 2: Convert to fraction form
    12,671.55/19,002.51 = 5,070.51/x
  3. Step 3: Cross multiply
    12,671.55x = 19,002.51 × 5,070.51
  4. Step 4: Simplify right side
    12,671.55x = 96,352,416.98
  5. Step 5: Solve for x
    x = 96,352,416.98/12,671.55
  6. Step 6: Final answer
    x = 7,603.84

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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.