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Finding the Fourth Proportional to 18,313.16, 25,271.16 and 10,356.98

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Solution

The fourth proportional to 18,313.16, 25,271.16 and 10,356.98 is: 14,292.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.16 : 25,271.16 = 10,356.98 : x
  2. Step 2: Convert to fraction form
    18,313.16/25,271.16 = 10,356.98/x
  3. Step 3: Cross multiply
    18,313.16x = 25,271.16 × 10,356.98
  4. Step 4: Simplify right side
    18,313.16x = 261,732,898.70
  5. Step 5: Solve for x
    x = 261,732,898.70/18,313.16
  6. Step 6: Final answer
    x = 14,292.07

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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.