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Finding the Fourth Proportional to 14,458.40, 20,285.50 and 14,458.40

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Solution

The fourth proportional to 14,458.40, 20,285.50 and 14,458.40 is: 20,285.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,458.40 : 20,285.50 = 14,458.40 : x
  2. Step 2: Convert to fraction form
    14,458.40/20,285.50 = 14,458.40/x
  3. Step 3: Cross multiply
    14,458.40x = 20,285.50 × 14,458.40
  4. Step 4: Simplify right side
    14,458.40x = 293,295,873.20
  5. Step 5: Solve for x
    x = 293,295,873.20/14,458.40
  6. Step 6: Final answer
    x = 20,285.50

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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.