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Finding the Fourth Proportional to 69,603.57, 96,051.91 and 40,926.47

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Solution

The fourth proportional to 69,603.57, 96,051.91 and 40,926.47 is: 56,477.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,603.57 : 96,051.91 = 40,926.47 : x
  2. Step 2: Convert to fraction form
    69,603.57/96,051.91 = 40,926.47/x
  3. Step 3: Cross multiply
    69,603.57x = 96,051.91 × 40,926.47
  4. Step 4: Simplify right side
    69,603.57x = 3,931,065,408.43
  5. Step 5: Solve for x
    x = 3,931,065,408.43/69,603.57
  6. Step 6: Final answer
    x = 56,477.93

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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.