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Finding the Fourth Proportional to 8,007.76, 11,051.32 and 4,651.60

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Solution

The fourth proportional to 8,007.76, 11,051.32 and 4,651.60 is: 6,419.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,007.76 : 11,051.32 = 4,651.60 : x
  2. Step 2: Convert to fraction form
    8,007.76/11,051.32 = 4,651.60/x
  3. Step 3: Cross multiply
    8,007.76x = 11,051.32 × 4,651.60
  4. Step 4: Simplify right side
    8,007.76x = 51,406,320.11
  5. Step 5: Solve for x
    x = 51,406,320.11/8,007.76
  6. Step 6: Final answer
    x = 6,419.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.