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Finding the Fourth Proportional to 17,705.08, 26,501.46 and 9,890.20

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Solution

The fourth proportional to 17,705.08, 26,501.46 and 9,890.20 is: 14,803.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,705.08 : 26,501.46 = 9,890.20 : x
  2. Step 2: Convert to fraction form
    17,705.08/26,501.46 = 9,890.20/x
  3. Step 3: Cross multiply
    17,705.08x = 26,501.46 × 9,890.20
  4. Step 4: Simplify right side
    17,705.08x = 262,104,739.69
  5. Step 5: Solve for x
    x = 262,104,739.69/17,705.08
  6. Step 6: Final answer
    x = 14,803.93

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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.