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Finding the Fourth Proportional to 56,307.81, 77,720.67 and 33,662.64

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Solution

The fourth proportional to 56,307.81, 77,720.67 and 33,662.64 is: 46,463.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,307.81 : 77,720.67 = 33,662.64 : x
  2. Step 2: Convert to fraction form
    56,307.81/77,720.67 = 33,662.64/x
  3. Step 3: Cross multiply
    56,307.81x = 77,720.67 × 33,662.64
  4. Step 4: Simplify right side
    56,307.81x = 2,616,282,934.77
  5. Step 5: Solve for x
    x = 2,616,282,934.77/56,307.81
  6. Step 6: Final answer
    x = 46,463.94

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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.