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Finding the Fourth Proportional to 9,585, 13,225.86 and 5,393.16

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Solution

The fourth proportional to 9,585, 13,225.86 and 5,393.16 is: 7,441.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,585 : 13,225.86 = 5,393.16 : x
  2. Step 2: Convert to fraction form
    9,585/13,225.86 = 5,393.16/x
  3. Step 3: Cross multiply
    9,585x = 13,225.86 × 5,393.16
  4. Step 4: Simplify right side
    9,585x = 71,329,179.12
  5. Step 5: Solve for x
    x = 71,329,179.12/9,585
  6. Step 6: Final answer
    x = 7,441.75

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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.