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Finding the Fourth Proportional to 9,840.67, 14,726.98 and 8,065.15

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Solution

The fourth proportional to 9,840.67, 14,726.98 and 8,065.15 is: 12,069.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840.67 : 14,726.98 = 8,065.15 : x
  2. Step 2: Convert to fraction form
    9,840.67/14,726.98 = 8,065.15/x
  3. Step 3: Cross multiply
    9,840.67x = 14,726.98 × 8,065.15
  4. Step 4: Simplify right side
    9,840.67x = 118,775,302.75
  5. Step 5: Solve for x
    x = 118,775,302.75/9,840.67
  6. Step 6: Final answer
    x = 12,069.84

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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.