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Finding the Fourth Proportional to 15,596.73, 21,525.68 and 9,929.67

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Solution

The fourth proportional to 15,596.73, 21,525.68 and 9,929.67 is: 13,704.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,596.73 : 21,525.68 = 9,929.67 : x
  2. Step 2: Convert to fraction form
    15,596.73/21,525.68 = 9,929.67/x
  3. Step 3: Cross multiply
    15,596.73x = 21,525.68 × 9,929.67
  4. Step 4: Simplify right side
    15,596.73x = 213,742,869.94
  5. Step 5: Solve for x
    x = 213,742,869.94/15,596.73
  6. Step 6: Final answer
    x = 13,704.34

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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.