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Finding the Fourth Proportional to 67,551.63, 93,172.90 and 47,413

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Solution

The fourth proportional to 67,551.63, 93,172.90 and 47,413 is: 65,396.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,551.63 : 93,172.90 = 47,413 : x
  2. Step 2: Convert to fraction form
    67,551.63/93,172.90 = 47,413/x
  3. Step 3: Cross multiply
    67,551.63x = 93,172.90 × 47,413
  4. Step 4: Simplify right side
    67,551.63x = 4,417,606,470.64
  5. Step 5: Solve for x
    x = 4,417,606,470.64/67,551.63
  6. Step 6: Final answer
    x = 65,396.01

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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.