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Finding the Fourth Proportional to 13,952.40, 20,901.87 and 13,483.41

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Solution

The fourth proportional to 13,952.40, 20,901.87 and 13,483.41 is: 20,199.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.40 : 20,901.87 = 13,483.41 : x
  2. Step 2: Convert to fraction form
    13,952.40/20,901.87 = 13,483.41/x
  3. Step 3: Cross multiply
    13,952.40x = 20,901.87 × 13,483.41
  4. Step 4: Simplify right side
    13,952.40x = 281,828,482.98
  5. Step 5: Solve for x
    x = 281,828,482.98/13,952.40
  6. Step 6: Final answer
    x = 20,199.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.