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Finding the Fourth Proportional to 61,396.62, 84,722.49 and 34,533.78

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Solution

The fourth proportional to 61,396.62, 84,722.49 and 34,533.78 is: 47,653.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,396.62 : 84,722.49 = 34,533.78 : x
  2. Step 2: Convert to fraction form
    61,396.62/84,722.49 = 34,533.78/x
  3. Step 3: Cross multiply
    61,396.62x = 84,722.49 × 34,533.78
  4. Step 4: Simplify right side
    61,396.62x = 2,925,787,830.71
  5. Step 5: Solve for x
    x = 2,925,787,830.71/61,396.62
  6. Step 6: Final answer
    x = 47,653.89

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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.