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Finding the Fourth Proportional to 9,359.12, 14,041.12 and 3,120.08

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Solution

The fourth proportional to 9,359.12, 14,041.12 and 3,120.08 is: 4,680.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,359.12 : 14,041.12 = 3,120.08 : x
  2. Step 2: Convert to fraction form
    9,359.12/14,041.12 = 3,120.08/x
  3. Step 3: Cross multiply
    9,359.12x = 14,041.12 × 3,120.08
  4. Step 4: Simplify right side
    9,359.12x = 43,809,417.69
  5. Step 5: Solve for x
    x = 43,809,417.69/9,359.12
  6. Step 6: Final answer
    x = 4,680.93

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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.