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Finding the Fourth Proportional to 11,607.65, 16,012.91 and 6,888.59

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Solution

The fourth proportional to 11,607.65, 16,012.91 and 6,888.59 is: 9,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,607.65 : 16,012.91 = 6,888.59 : x
  2. Step 2: Convert to fraction form
    11,607.65/16,012.91 = 6,888.59/x
  3. Step 3: Cross multiply
    11,607.65x = 16,012.91 × 6,888.59
  4. Step 4: Simplify right side
    11,607.65x = 110,306,257.19
  5. Step 5: Solve for x
    x = 110,306,257.19/11,607.65
  6. Step 6: Final answer
    x = 9,502.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.