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Finding the Fourth Proportional to 7,040.51, 9,714.83 and 4,055.76

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Solution

The fourth proportional to 7,040.51, 9,714.83 and 4,055.76 is: 5,596.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.51 : 9,714.83 = 4,055.76 : x
  2. Step 2: Convert to fraction form
    7,040.51/9,714.83 = 4,055.76/x
  3. Step 3: Cross multiply
    7,040.51x = 9,714.83 × 4,055.76
  4. Step 4: Simplify right side
    7,040.51x = 39,401,035.07
  5. Step 5: Solve for x
    x = 39,401,035.07/7,040.51
  6. Step 6: Final answer
    x = 5,596.33

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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.