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Finding the Fourth Proportional to 7,065.51, 9,750.56 and 3,922.17

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Solution

The fourth proportional to 7,065.51, 9,750.56 and 3,922.17 is: 5,412.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.51 : 9,750.56 = 3,922.17 : x
  2. Step 2: Convert to fraction form
    7,065.51/9,750.56 = 3,922.17/x
  3. Step 3: Cross multiply
    7,065.51x = 9,750.56 × 3,922.17
  4. Step 4: Simplify right side
    7,065.51x = 38,243,334.30
  5. Step 5: Solve for x
    x = 38,243,334.30/7,065.51
  6. Step 6: Final answer
    x = 5,412.68

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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.