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Finding the Fourth Proportional to 9,980.79, 14,984.85 and 6,272.01

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Solution

The fourth proportional to 9,980.79, 14,984.85 and 6,272.01 is: 9,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980.79 : 14,984.85 = 6,272.01 : x
  2. Step 2: Convert to fraction form
    9,980.79/14,984.85 = 6,272.01/x
  3. Step 3: Cross multiply
    9,980.79x = 14,984.85 × 6,272.01
  4. Step 4: Simplify right side
    9,980.79x = 93,985,129.05
  5. Step 5: Solve for x
    x = 93,985,129.05/9,980.79
  6. Step 6: Final answer
    x = 9,416.60

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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.