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Finding the Fourth Proportional to 12,588.96, 18,885.96 and 7,050.18

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Solution

The fourth proportional to 12,588.96, 18,885.96 and 7,050.18 is: 10,576.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.96 : 18,885.96 = 7,050.18 : x
  2. Step 2: Convert to fraction form
    12,588.96/18,885.96 = 7,050.18/x
  3. Step 3: Cross multiply
    12,588.96x = 18,885.96 × 7,050.18
  4. Step 4: Simplify right side
    12,588.96x = 133,149,417.47
  5. Step 5: Solve for x
    x = 133,149,417.47/12,588.96
  6. Step 6: Final answer
    x = 10,576.68

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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.