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Finding the Fourth Proportional to 14,903.70, 20,895.90 and 14,903.70

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Solution

The fourth proportional to 14,903.70, 20,895.90 and 14,903.70 is: 20,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,903.70 : 20,895.90 = 14,903.70 : x
  2. Step 2: Convert to fraction form
    14,903.70/20,895.90 = 14,903.70/x
  3. Step 3: Cross multiply
    14,903.70x = 20,895.90 × 14,903.70
  4. Step 4: Simplify right side
    14,903.70x = 311,426,224.83
  5. Step 5: Solve for x
    x = 311,426,224.83/14,903.70
  6. Step 6: Final answer
    x = 20,895.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.