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Finding the Fourth Proportional to 3,075.84, 4,612.79 and 995.36

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Solution

The fourth proportional to 3,075.84, 4,612.79 and 995.36 is: 1,492.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.84 : 4,612.79 = 995.36 : x
  2. Step 2: Convert to fraction form
    3,075.84/4,612.79 = 995.36/x
  3. Step 3: Cross multiply
    3,075.84x = 4,612.79 × 995.36
  4. Step 4: Simplify right side
    3,075.84x = 4,591,368.81
  5. Step 5: Solve for x
    x = 4,591,368.81/3,075.84
  6. Step 6: Final answer
    x = 1,492.72

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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.