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Finding the Fourth Proportional to 18,661.10, 26,160.10 and 18,661.10

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Solution

The fourth proportional to 18,661.10, 26,160.10 and 18,661.10 is: 26,160.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661.10 : 26,160.10 = 18,661.10 : x
  2. Step 2: Convert to fraction form
    18,661.10/26,160.10 = 18,661.10/x
  3. Step 3: Cross multiply
    18,661.10x = 26,160.10 × 18,661.10
  4. Step 4: Simplify right side
    18,661.10x = 488,176,242.11
  5. Step 5: Solve for x
    x = 488,176,242.11/18,661.10
  6. Step 6: Final answer
    x = 26,160.10

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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.