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Finding the Fourth Proportional to 7,040.63, 9,717.10 and 4,055.89

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Solution

The fourth proportional to 7,040.63, 9,717.10 and 4,055.89 is: 5,597.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.63 : 9,717.10 = 4,055.89 : x
  2. Step 2: Convert to fraction form
    7,040.63/9,717.10 = 4,055.89/x
  3. Step 3: Cross multiply
    7,040.63x = 9,717.10 × 4,055.89
  4. Step 4: Simplify right side
    7,040.63x = 39,411,488.72
  5. Step 5: Solve for x
    x = 39,411,488.72/7,040.63
  6. Step 6: Final answer
    x = 5,597.72

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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.