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Finding the Fourth Proportional to 9,933.10, 14,911.80 and 9,860.20

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Solution

The fourth proportional to 9,933.10, 14,911.80 and 9,860.20 is: 14,802.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,933.10 : 14,911.80 = 9,860.20 : x
  2. Step 2: Convert to fraction form
    9,933.10/14,911.80 = 9,860.20/x
  3. Step 3: Cross multiply
    9,933.10x = 14,911.80 × 9,860.20
  4. Step 4: Simplify right side
    9,933.10x = 147,033,330.36
  5. Step 5: Solve for x
    x = 147,033,330.36/9,933.10
  6. Step 6: Final answer
    x = 14,802.36

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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.