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Finding the Fourth Proportional to 15,929.61, 23,864.44 and 9,336.21

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Solution

The fourth proportional to 15,929.61, 23,864.44 and 9,336.21 is: 13,986.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,929.61 : 23,864.44 = 9,336.21 : x
  2. Step 2: Convert to fraction form
    15,929.61/23,864.44 = 9,336.21/x
  3. Step 3: Cross multiply
    15,929.61x = 23,864.44 × 9,336.21
  4. Step 4: Simplify right side
    15,929.61x = 222,803,423.37
  5. Step 5: Solve for x
    x = 222,803,423.37/15,929.61
  6. Step 6: Final answer
    x = 13,986.75

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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.