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Finding the Fourth Proportional to 25,861.70, 35,689.16 and 14,683.70

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Solution

The fourth proportional to 25,861.70, 35,689.16 and 14,683.70 is: 20,263.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,861.70 : 35,689.16 = 14,683.70 : x
  2. Step 2: Convert to fraction form
    25,861.70/35,689.16 = 14,683.70/x
  3. Step 3: Cross multiply
    25,861.70x = 35,689.16 × 14,683.70
  4. Step 4: Simplify right side
    25,861.70x = 524,048,918.69
  5. Step 5: Solve for x
    x = 524,048,918.69/25,861.70
  6. Step 6: Final answer
    x = 20,263.51

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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.