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Finding the Fourth Proportional to 9,895.72, 14,847.91 and 8,580.79

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Solution

The fourth proportional to 9,895.72, 14,847.91 and 8,580.79 is: 12,874.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,895.72 : 14,847.91 = 8,580.79 : x
  2. Step 2: Convert to fraction form
    9,895.72/14,847.91 = 8,580.79/x
  3. Step 3: Cross multiply
    9,895.72x = 14,847.91 × 8,580.79
  4. Step 4: Simplify right side
    9,895.72x = 127,406,711.24
  5. Step 5: Solve for x
    x = 127,406,711.24/9,895.72
  6. Step 6: Final answer
    x = 12,874.93

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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.