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Finding the Fourth Proportional to 5,368.92, 7,409.94 and 3,132.10

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Solution

The fourth proportional to 5,368.92, 7,409.94 and 3,132.10 is: 4,322.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368.92 : 7,409.94 = 3,132.10 : x
  2. Step 2: Convert to fraction form
    5,368.92/7,409.94 = 3,132.10/x
  3. Step 3: Cross multiply
    5,368.92x = 7,409.94 × 3,132.10
  4. Step 4: Simplify right side
    5,368.92x = 23,208,673.07
  5. Step 5: Solve for x
    x = 23,208,673.07/5,368.92
  6. Step 6: Final answer
    x = 4,322.78

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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.