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Finding the Fourth Proportional to 15,285.40, 22,949.70 and 9,453.40

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Solution

The fourth proportional to 15,285.40, 22,949.70 and 9,453.40 is: 14,193.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.40 : 22,949.70 = 9,453.40 : x
  2. Step 2: Convert to fraction form
    15,285.40/22,949.70 = 9,453.40/x
  3. Step 3: Cross multiply
    15,285.40x = 22,949.70 × 9,453.40
  4. Step 4: Simplify right side
    15,285.40x = 216,952,693.98
  5. Step 5: Solve for x
    x = 216,952,693.98/15,285.40
  6. Step 6: Final answer
    x = 14,193.46

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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.