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Finding the Fourth Proportional to 7,036.64, 9,710.52 and 3,892.76

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Solution

The fourth proportional to 7,036.64, 9,710.52 and 3,892.76 is: 5,371.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,036.64 : 9,710.52 = 3,892.76 : x
  2. Step 2: Convert to fraction form
    7,036.64/9,710.52 = 3,892.76/x
  3. Step 3: Cross multiply
    7,036.64x = 9,710.52 × 3,892.76
  4. Step 4: Simplify right side
    7,036.64x = 37,800,723.84
  5. Step 5: Solve for x
    x = 37,800,723.84/7,036.64
  6. Step 6: Final answer
    x = 5,371.98

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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.