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Finding the Fourth Proportional to 9,778.77, 14,660.42 and 3,537.81

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Solution

The fourth proportional to 9,778.77, 14,660.42 and 3,537.81 is: 5,303.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,778.77 : 14,660.42 = 3,537.81 : x
  2. Step 2: Convert to fraction form
    9,778.77/14,660.42 = 3,537.81/x
  3. Step 3: Cross multiply
    9,778.77x = 14,660.42 × 3,537.81
  4. Step 4: Simplify right side
    9,778.77x = 51,865,762.79
  5. Step 5: Solve for x
    x = 51,865,762.79/9,778.77
  6. Step 6: Final answer
    x = 5,303.91

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1.5x scale

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.