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Finding the Fourth Proportional to 9,395.58, 12,965.88 and 5,416.68

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Solution

The fourth proportional to 9,395.58, 12,965.88 and 5,416.68 is: 7,475.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,395.58 : 12,965.88 = 5,416.68 : x
  2. Step 2: Convert to fraction form
    9,395.58/12,965.88 = 5,416.68/x
  3. Step 3: Cross multiply
    9,395.58x = 12,965.88 × 5,416.68
  4. Step 4: Simplify right side
    9,395.58x = 70,232,022.88
  5. Step 5: Solve for x
    x = 70,232,022.88/9,395.58
  6. Step 6: Final answer
    x = 7,475.01

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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.