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Finding the Fourth Proportional to 18,010.30, 25,156.10 and 18,010.30

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Solution

The fourth proportional to 18,010.30, 25,156.10 and 18,010.30 is: 25,156.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,010.30 : 25,156.10 = 18,010.30 : x
  2. Step 2: Convert to fraction form
    18,010.30/25,156.10 = 18,010.30/x
  3. Step 3: Cross multiply
    18,010.30x = 25,156.10 × 18,010.30
  4. Step 4: Simplify right side
    18,010.30x = 453,068,907.83
  5. Step 5: Solve for x
    x = 453,068,907.83/18,010.30
  6. Step 6: Final answer
    x = 25,156.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.