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Finding the Fourth Proportional to 15,929.84, 23,893.83 and 7,615.59

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Solution

The fourth proportional to 15,929.84, 23,893.83 and 7,615.59 is: 11,422.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,929.84 : 23,893.83 = 7,615.59 : x
  2. Step 2: Convert to fraction form
    15,929.84/23,893.83 = 7,615.59/x
  3. Step 3: Cross multiply
    15,929.84x = 23,893.83 × 7,615.59
  4. Step 4: Simplify right side
    15,929.84x = 181,965,612.81
  5. Step 5: Solve for x
    x = 181,965,612.81/15,929.84
  6. Step 6: Final answer
    x = 11,422.94

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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.