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Finding the Fourth Proportional to 5,704.71, 8,515.78 and 4,929.69

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Solution

The fourth proportional to 5,704.71, 8,515.78 and 4,929.69 is: 7,358.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,704.71 : 8,515.78 = 4,929.69 : x
  2. Step 2: Convert to fraction form
    5,704.71/8,515.78 = 4,929.69/x
  3. Step 3: Cross multiply
    5,704.71x = 8,515.78 × 4,929.69
  4. Step 4: Simplify right side
    5,704.71x = 41,980,155.51
  5. Step 5: Solve for x
    x = 41,980,155.51/5,704.71
  6. Step 6: Final answer
    x = 7,358.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.