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Finding the Fourth Proportional to 2,955.04, 4,078.08 and 1,712.96

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Solution

The fourth proportional to 2,955.04, 4,078.08 and 1,712.96 is: 2,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.04 : 4,078.08 = 1,712.96 : x
  2. Step 2: Convert to fraction form
    2,955.04/4,078.08 = 1,712.96/x
  3. Step 3: Cross multiply
    2,955.04x = 4,078.08 × 1,712.96
  4. Step 4: Simplify right side
    2,955.04x = 6,985,587.92
  5. Step 5: Solve for x
    x = 6,985,587.92/2,955.04
  6. Step 6: Final answer
    x = 2,363.96

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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.