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Finding the Fourth Proportional to 23,638.60, 35,457.90 and 19,410.40

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Solution

The fourth proportional to 23,638.60, 35,457.90 and 19,410.40 is: 29,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,638.60 : 35,457.90 = 19,410.40 : x
  2. Step 2: Convert to fraction form
    23,638.60/35,457.90 = 19,410.40/x
  3. Step 3: Cross multiply
    23,638.60x = 35,457.90 × 19,410.40
  4. Step 4: Simplify right side
    23,638.60x = 688,252,022.16
  5. Step 5: Solve for x
    x = 688,252,022.16/23,638.60
  6. Step 6: Final answer
    x = 29,115.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.