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Finding the Fourth Proportional to 3,166.65, 4,750.74 and 975.42

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Solution

The fourth proportional to 3,166.65, 4,750.74 and 975.42 is: 1,463.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.65 : 4,750.74 = 975.42 : x
  2. Step 2: Convert to fraction form
    3,166.65/4,750.74 = 975.42/x
  3. Step 3: Cross multiply
    3,166.65x = 4,750.74 × 975.42
  4. Step 4: Simplify right side
    3,166.65x = 4,633,966.81
  5. Step 5: Solve for x
    x = 4,633,966.81/3,166.65
  6. Step 6: Final answer
    x = 1,463.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.