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Finding the Fourth Proportional to 35,222.63, 48,612.20 and 21,798.20

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Solution

The fourth proportional to 35,222.63, 48,612.20 and 21,798.20 is: 30,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,222.63 : 48,612.20 = 21,798.20 : x
  2. Step 2: Convert to fraction form
    35,222.63/48,612.20 = 21,798.20/x
  3. Step 3: Cross multiply
    35,222.63x = 48,612.20 × 21,798.20
  4. Step 4: Simplify right side
    35,222.63x = 1,059,658,470.58
  5. Step 5: Solve for x
    x = 1,059,658,470.58/35,222.63
  6. Step 6: Final answer
    x = 30,084.60

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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.