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Finding the Fourth Proportional to 35,368.40, 48,846.42 and 21,971.48

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Solution

The fourth proportional to 35,368.40, 48,846.42 and 21,971.48 is: 30,344.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,368.40 : 48,846.42 = 21,971.48 : x
  2. Step 2: Convert to fraction form
    35,368.40/48,846.42 = 21,971.48/x
  3. Step 3: Cross multiply
    35,368.40x = 48,846.42 × 21,971.48
  4. Step 4: Simplify right side
    35,368.40x = 1,073,228,140.10
  5. Step 5: Solve for x
    x = 1,073,228,140.10/35,368.40
  6. Step 6: Final answer
    x = 30,344.27

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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.