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Finding the Fourth Proportional to 21,526.92, 32,287.95 and 7,484.58

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Solution

The fourth proportional to 21,526.92, 32,287.95 and 7,484.58 is: 11,226.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,526.92 : 32,287.95 = 7,484.58 : x
  2. Step 2: Convert to fraction form
    21,526.92/32,287.95 = 7,484.58/x
  3. Step 3: Cross multiply
    21,526.92x = 32,287.95 × 7,484.58
  4. Step 4: Simplify right side
    21,526.92x = 241,661,744.81
  5. Step 5: Solve for x
    x = 241,661,744.81/21,526.92
  6. Step 6: Final answer
    x = 11,226.03

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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.