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Finding the Fourth Proportional to 52,398.99, 78,598.49 and 12,956.85

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Solution

The fourth proportional to 52,398.99, 78,598.49 and 12,956.85 is: 19,435.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,398.99 : 78,598.49 = 12,956.85 : x
  2. Step 2: Convert to fraction form
    52,398.99/78,598.49 = 12,956.85/x
  3. Step 3: Cross multiply
    52,398.99x = 78,598.49 × 12,956.85
  4. Step 4: Simplify right side
    52,398.99x = 1,018,388,845.16
  5. Step 5: Solve for x
    x = 1,018,388,845.16/52,398.99
  6. Step 6: Final answer
    x = 19,435.28

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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.