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Finding the Fourth Proportional to 35,172.64, 48,531.72 and 21,022.48

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Solution

The fourth proportional to 35,172.64, 48,531.72 and 21,022.48 is: 29,007.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,172.64 : 48,531.72 = 21,022.48 : x
  2. Step 2: Convert to fraction form
    35,172.64/48,531.72 = 21,022.48/x
  3. Step 3: Cross multiply
    35,172.64x = 48,531.72 × 21,022.48
  4. Step 4: Simplify right side
    35,172.64x = 1,020,257,113.07
  5. Step 5: Solve for x
    x = 1,020,257,113.07/35,172.64
  6. Step 6: Final answer
    x = 29,007.12

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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.