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Finding the Fourth Proportional to 9,470.55, 13,055.72 and 6,629.16

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Solution

The fourth proportional to 9,470.55, 13,055.72 and 6,629.16 is: 9,138.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,470.55 : 13,055.72 = 6,629.16 : x
  2. Step 2: Convert to fraction form
    9,470.55/13,055.72 = 6,629.16/x
  3. Step 3: Cross multiply
    9,470.55x = 13,055.72 × 6,629.16
  4. Step 4: Simplify right side
    9,470.55x = 86,548,423.65
  5. Step 5: Solve for x
    x = 86,548,423.65/9,470.55
  6. Step 6: Final answer
    x = 9,138.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.