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Finding the Fourth Proportional to 8,955.40, 12,350.16 and 5,597.14

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Solution

The fourth proportional to 8,955.40, 12,350.16 and 5,597.14 is: 7,718.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.40 : 12,350.16 = 5,597.14 : x
  2. Step 2: Convert to fraction form
    8,955.40/12,350.16 = 5,597.14/x
  3. Step 3: Cross multiply
    8,955.40x = 12,350.16 × 5,597.14
  4. Step 4: Simplify right side
    8,955.40x = 69,125,574.54
  5. Step 5: Solve for x
    x = 69,125,574.54/8,955.40
  6. Step 6: Final answer
    x = 7,718.87

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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.