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Finding the Fourth Proportional to 7,086.36, 9,780.53 and 4,692.11

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Solution

The fourth proportional to 7,086.36, 9,780.53 and 4,692.11 is: 6,476.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086.36 : 9,780.53 = 4,692.11 : x
  2. Step 2: Convert to fraction form
    7,086.36/9,780.53 = 4,692.11/x
  3. Step 3: Cross multiply
    7,086.36x = 9,780.53 × 4,692.11
  4. Step 4: Simplify right side
    7,086.36x = 45,891,250.26
  5. Step 5: Solve for x
    x = 45,891,250.26/7,086.36
  6. Step 6: Final answer
    x = 6,476.00

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1.5x scale

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.