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Finding the Fourth Proportional to 8,779.71, 13,171.62 and 6,007.68

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Solution

The fourth proportional to 8,779.71, 13,171.62 and 6,007.68 is: 9,012.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.71 : 13,171.62 = 6,007.68 : x
  2. Step 2: Convert to fraction form
    8,779.71/13,171.62 = 6,007.68/x
  3. Step 3: Cross multiply
    8,779.71x = 13,171.62 × 6,007.68
  4. Step 4: Simplify right side
    8,779.71x = 79,130,878.04
  5. Step 5: Solve for x
    x = 79,130,878.04/8,779.71
  6. Step 6: Final answer
    x = 9,012.93

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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.