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Finding the Fourth Proportional to 15,237.45, 21,024.50 and 8,946.45

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Solution

The fourth proportional to 15,237.45, 21,024.50 and 8,946.45 is: 12,344.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,237.45 : 21,024.50 = 8,946.45 : x
  2. Step 2: Convert to fraction form
    15,237.45/21,024.50 = 8,946.45/x
  3. Step 3: Cross multiply
    15,237.45x = 21,024.50 × 8,946.45
  4. Step 4: Simplify right side
    15,237.45x = 188,094,593.29
  5. Step 5: Solve for x
    x = 188,094,593.29/15,237.45
  6. Step 6: Final answer
    x = 12,344.23

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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.