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Finding the Fourth Proportional to 11,888.84, 16,406.65 and 6,583.55

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Solution

The fourth proportional to 11,888.84, 16,406.65 and 6,583.55 is: 9,085.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.84 : 16,406.65 = 6,583.55 : x
  2. Step 2: Convert to fraction form
    11,888.84/16,406.65 = 6,583.55/x
  3. Step 3: Cross multiply
    11,888.84x = 16,406.65 × 6,583.55
  4. Step 4: Simplify right side
    11,888.84x = 108,013,926.80
  5. Step 5: Solve for x
    x = 108,013,926.80/11,888.84
  6. Step 6: Final answer
    x = 9,085.32

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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.