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Finding the Fourth Proportional to 34,410, 51,623.64 and 9,786

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Solution

The fourth proportional to 34,410, 51,623.64 and 9,786 is: 14,681.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,410 : 51,623.64 = 9,786 : x
  2. Step 2: Convert to fraction form
    34,410/51,623.64 = 9,786/x
  3. Step 3: Cross multiply
    34,410x = 51,623.64 × 9,786
  4. Step 4: Simplify right side
    34,410x = 505,188,941.04
  5. Step 5: Solve for x
    x = 505,188,941.04/34,410
  6. Step 6: Final answer
    x = 14,681.46

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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.