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Finding the Fourth Proportional to 25,989.81, 35,863.87 and 14,655.67

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Solution

The fourth proportional to 25,989.81, 35,863.87 and 14,655.67 is: 20,223.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,989.81 : 35,863.87 = 14,655.67 : x
  2. Step 2: Convert to fraction form
    25,989.81/35,863.87 = 14,655.67/x
  3. Step 3: Cross multiply
    25,989.81x = 35,863.87 × 14,655.67
  4. Step 4: Simplify right side
    25,989.81x = 525,609,043.64
  5. Step 5: Solve for x
    x = 525,609,043.64/25,989.81
  6. Step 6: Final answer
    x = 20,223.66

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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.