Home / 7,110.02-10,666.23-2,178.47

Finding the Fourth Proportional to 7,110.02, 10,666.23 and 2,178.47

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Solution

The fourth proportional to 7,110.02, 10,666.23 and 2,178.47 is: 3,268.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.02 : 10,666.23 = 2,178.47 : x
  2. Step 2: Convert to fraction form
    7,110.02/10,666.23 = 2,178.47/x
  3. Step 3: Cross multiply
    7,110.02x = 10,666.23 × 2,178.47
  4. Step 4: Simplify right side
    7,110.02x = 23,236,062.07
  5. Step 5: Solve for x
    x = 23,236,062.07/7,110.02
  6. Step 6: Final answer
    x = 3,268.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.