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Finding the Fourth Proportional to 7,959.42, 10,985.40 and 4,601.70

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Solution

The fourth proportional to 7,959.42, 10,985.40 and 4,601.70 is: 6,351.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,959.42 : 10,985.40 = 4,601.70 : x
  2. Step 2: Convert to fraction form
    7,959.42/10,985.40 = 4,601.70/x
  3. Step 3: Cross multiply
    7,959.42x = 10,985.40 × 4,601.70
  4. Step 4: Simplify right side
    7,959.42x = 50,551,515.18
  5. Step 5: Solve for x
    x = 50,551,515.18/7,959.42
  6. Step 6: Final answer
    x = 6,351.16

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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.