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Finding the Fourth Proportional to 66,506.48, 99,703.58 and 30,949.42

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Solution

The fourth proportional to 66,506.48, 99,703.58 and 30,949.42 is: 46,398.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,506.48 : 99,703.58 = 30,949.42 : x
  2. Step 2: Convert to fraction form
    66,506.48/99,703.58 = 30,949.42/x
  3. Step 3: Cross multiply
    66,506.48x = 99,703.58 × 30,949.42
  4. Step 4: Simplify right side
    66,506.48x = 3,085,767,972.92
  5. Step 5: Solve for x
    x = 3,085,767,972.92/66,506.48
  6. Step 6: Final answer
    x = 46,398.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.