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Finding the Fourth Proportional to 1,675.54, 2,312.43 and 967.55

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Solution

The fourth proportional to 1,675.54, 2,312.43 and 967.55 is: 1,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.54 : 2,312.43 = 967.55 : x
  2. Step 2: Convert to fraction form
    1,675.54/2,312.43 = 967.55/x
  3. Step 3: Cross multiply
    1,675.54x = 2,312.43 × 967.55
  4. Step 4: Simplify right side
    1,675.54x = 2,237,381.90
  5. Step 5: Solve for x
    x = 2,237,381.90/1,675.54
  6. Step 6: Final answer
    x = 1,335.32

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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.