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Finding the Fourth Proportional to 22,806.99, 31,503.87 and 18,347.54

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Solution

The fourth proportional to 22,806.99, 31,503.87 and 18,347.54 is: 25,343.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,806.99 : 31,503.87 = 18,347.54 : x
  2. Step 2: Convert to fraction form
    22,806.99/31,503.87 = 18,347.54/x
  3. Step 3: Cross multiply
    22,806.99x = 31,503.87 × 18,347.54
  4. Step 4: Simplify right side
    22,806.99x = 578,018,357.46
  5. Step 5: Solve for x
    x = 578,018,357.46/22,806.99
  6. Step 6: Final answer
    x = 25,343.91

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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.