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Finding the Fourth Proportional to 2,955.25, 4,432.88 and 903.25

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Solution

The fourth proportional to 2,955.25, 4,432.88 and 903.25 is: 1,354.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.25 : 4,432.88 = 903.25 : x
  2. Step 2: Convert to fraction form
    2,955.25/4,432.88 = 903.25/x
  3. Step 3: Cross multiply
    2,955.25x = 4,432.88 × 903.25
  4. Step 4: Simplify right side
    2,955.25x = 4,003,994.34
  5. Step 5: Solve for x
    x = 4,003,994.34/2,955.25
  6. Step 6: Final answer
    x = 1,354.88

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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.