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Finding the Fourth Proportional to 3,142.17, 4,713.47 and 951.07

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Solution

The fourth proportional to 3,142.17, 4,713.47 and 951.07 is: 1,426.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.17 : 4,713.47 = 951.07 : x
  2. Step 2: Convert to fraction form
    3,142.17/4,713.47 = 951.07/x
  3. Step 3: Cross multiply
    3,142.17x = 4,713.47 × 951.07
  4. Step 4: Simplify right side
    3,142.17x = 4,482,830.51
  5. Step 5: Solve for x
    x = 4,482,830.51/3,142.17
  6. Step 6: Final answer
    x = 1,426.67

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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.