Home / 7,021.12-9,688.10-4,037.08

Finding the Fourth Proportional to 7,021.12, 9,688.10 and 4,037.08

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Solution

The fourth proportional to 7,021.12, 9,688.10 and 4,037.08 is: 5,570.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.12 : 9,688.10 = 4,037.08 : x
  2. Step 2: Convert to fraction form
    7,021.12/9,688.10 = 4,037.08/x
  3. Step 3: Cross multiply
    7,021.12x = 9,688.10 × 4,037.08
  4. Step 4: Simplify right side
    7,021.12x = 39,111,634.75
  5. Step 5: Solve for x
    x = 39,111,634.75/7,021.12
  6. Step 6: Final answer
    x = 5,570.57

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