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Finding the Fourth Proportional to 7,036.04, 9,709.92 and 3,892.28

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Solution

The fourth proportional to 7,036.04, 9,709.92 and 3,892.28 is: 5,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,036.04 : 9,709.92 = 3,892.28 : x
  2. Step 2: Convert to fraction form
    7,036.04/9,709.92 = 3,892.28/x
  3. Step 3: Cross multiply
    7,036.04x = 9,709.92 × 3,892.28
  4. Step 4: Simplify right side
    7,036.04x = 37,793,727.42
  5. Step 5: Solve for x
    x = 37,793,727.42/7,036.04
  6. Step 6: Final answer
    x = 5,371.45

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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.