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Finding the Fourth Proportional to 9,955.80, 14,933.70 and 9,802.20

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Solution

The fourth proportional to 9,955.80, 14,933.70 and 9,802.20 is: 14,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,955.80 : 14,933.70 = 9,802.20 : x
  2. Step 2: Convert to fraction form
    9,955.80/14,933.70 = 9,802.20/x
  3. Step 3: Cross multiply
    9,955.80x = 14,933.70 × 9,802.20
  4. Step 4: Simplify right side
    9,955.80x = 146,383,114.14
  5. Step 5: Solve for x
    x = 146,383,114.14/9,955.80
  6. Step 6: Final answer
    x = 14,703.30

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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.