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Finding the Fourth Proportional to 9,765.84, 13,476.69 and 5,574

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Solution

The fourth proportional to 9,765.84, 13,476.69 and 5,574 is: 7,692.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,765.84 : 13,476.69 = 5,574 : x
  2. Step 2: Convert to fraction form
    9,765.84/13,476.69 = 5,574/x
  3. Step 3: Cross multiply
    9,765.84x = 13,476.69 × 5,574
  4. Step 4: Simplify right side
    9,765.84x = 75,119,070.06
  5. Step 5: Solve for x
    x = 75,119,070.06/9,765.84
  6. Step 6: Final answer
    x = 7,692.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.