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Finding the Fourth Proportional to 35,043.30, 48,360.90 and 19,128.60

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Solution

The fourth proportional to 35,043.30, 48,360.90 and 19,128.60 is: 26,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,043.30 : 48,360.90 = 19,128.60 : x
  2. Step 2: Convert to fraction form
    35,043.30/48,360.90 = 19,128.60/x
  3. Step 3: Cross multiply
    35,043.30x = 48,360.90 × 19,128.60
  4. Step 4: Simplify right side
    35,043.30x = 925,076,311.74
  5. Step 5: Solve for x
    x = 925,076,311.74/35,043.30
  6. Step 6: Final answer
    x = 26,398.09

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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.