Home / 9,931.28-14,899.38-3,005.80

Finding the Fourth Proportional to 9,931.28, 14,899.38 and 3,005.80

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Solution

The fourth proportional to 9,931.28, 14,899.38 and 3,005.80 is: 4,509.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,931.28 : 14,899.38 = 3,005.80 : x
  2. Step 2: Convert to fraction form
    9,931.28/14,899.38 = 3,005.80/x
  3. Step 3: Cross multiply
    9,931.28x = 14,899.38 × 3,005.80
  4. Step 4: Simplify right side
    9,931.28x = 44,784,556.40
  5. Step 5: Solve for x
    x = 44,784,556.40/9,931.28
  6. Step 6: Final answer
    x = 4,509.44

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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.