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Finding the Fourth Proportional to 15,905.10, 23,809.05 and 15,905.10

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Solution

The fourth proportional to 15,905.10, 23,809.05 and 15,905.10 is: 23,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.10 : 23,809.05 = 15,905.10 : x
  2. Step 2: Convert to fraction form
    15,905.10/23,809.05 = 15,905.10/x
  3. Step 3: Cross multiply
    15,905.10x = 23,809.05 × 15,905.10
  4. Step 4: Simplify right side
    15,905.10x = 378,685,321.16
  5. Step 5: Solve for x
    x = 378,685,321.16/15,905.10
  6. Step 6: Final answer
    x = 23,809.05

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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.