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Finding the Fourth Proportional to 6,570.41, 9,070.07 and 3,918.74

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Solution

The fourth proportional to 6,570.41, 9,070.07 and 3,918.74 is: 5,409.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,570.41 : 9,070.07 = 3,918.74 : x
  2. Step 2: Convert to fraction form
    6,570.41/9,070.07 = 3,918.74/x
  3. Step 3: Cross multiply
    6,570.41x = 9,070.07 × 3,918.74
  4. Step 4: Simplify right side
    6,570.41x = 35,543,181.17
  5. Step 5: Solve for x
    x = 35,543,181.17/6,570.41
  6. Step 6: Final answer
    x = 5,409.59

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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.