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Finding the Fourth Proportional to 9,800.10, 14,689.21 and 4,245.12

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Solution

The fourth proportional to 9,800.10, 14,689.21 and 4,245.12 is: 6,362.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,800.10 : 14,689.21 = 4,245.12 : x
  2. Step 2: Convert to fraction form
    9,800.10/14,689.21 = 4,245.12/x
  3. Step 3: Cross multiply
    9,800.10x = 14,689.21 × 4,245.12
  4. Step 4: Simplify right side
    9,800.10x = 62,357,459.16
  5. Step 5: Solve for x
    x = 62,357,459.16/9,800.10
  6. Step 6: Final answer
    x = 6,362.94

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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.