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Finding the Fourth Proportional to 7,051.65, 9,731.41 and 3,864.74

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Solution

The fourth proportional to 7,051.65, 9,731.41 and 3,864.74 is: 5,333.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,051.65 : 9,731.41 = 3,864.74 : x
  2. Step 2: Convert to fraction form
    7,051.65/9,731.41 = 3,864.74/x
  3. Step 3: Cross multiply
    7,051.65x = 9,731.41 × 3,864.74
  4. Step 4: Simplify right side
    7,051.65x = 37,609,338.53
  5. Step 5: Solve for x
    x = 37,609,338.53/7,051.65
  6. Step 6: Final answer
    x = 5,333.41

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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.