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Finding the Fourth Proportional to 18,807.75, 28,224.59 and 6,495.75

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Solution

The fourth proportional to 18,807.75, 28,224.59 and 6,495.75 is: 9,748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,807.75 : 28,224.59 = 6,495.75 : x
  2. Step 2: Convert to fraction form
    18,807.75/28,224.59 = 6,495.75/x
  3. Step 3: Cross multiply
    18,807.75x = 28,224.59 × 6,495.75
  4. Step 4: Simplify right side
    18,807.75x = 183,339,848.01
  5. Step 5: Solve for x
    x = 183,339,848.01/18,807.75
  6. Step 6: Final answer
    x = 9,748.10

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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.