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Finding the Fourth Proportional to 9,788.88, 14,668.20 and 4,588.68

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Solution

The fourth proportional to 9,788.88, 14,668.20 and 4,588.68 is: 6,875.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,788.88 : 14,668.20 = 4,588.68 : x
  2. Step 2: Convert to fraction form
    9,788.88/14,668.20 = 4,588.68/x
  3. Step 3: Cross multiply
    9,788.88x = 14,668.20 × 4,588.68
  4. Step 4: Simplify right side
    9,788.88x = 67,307,675.98
  5. Step 5: Solve for x
    x = 67,307,675.98/9,788.88
  6. Step 6: Final answer
    x = 6,875.93

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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.