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Finding the Fourth Proportional to 66,607, 99,910.50 and 17,359

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Solution

The fourth proportional to 66,607, 99,910.50 and 17,359 is: 26,038.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,607 : 99,910.50 = 17,359 : x
  2. Step 2: Convert to fraction form
    66,607/99,910.50 = 17,359/x
  3. Step 3: Cross multiply
    66,607x = 99,910.50 × 17,359
  4. Step 4: Simplify right side
    66,607x = 1,734,346,369.50
  5. Step 5: Solve for x
    x = 1,734,346,369.50/66,607
  6. Step 6: Final answer
    x = 26,038.50

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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.