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Finding the Fourth Proportional to 3,075.52, 4,613.54 and 994.72

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Solution

The fourth proportional to 3,075.52, 4,613.54 and 994.72 is: 1,492.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.52 : 4,613.54 = 994.72 : x
  2. Step 2: Convert to fraction form
    3,075.52/4,613.54 = 994.72/x
  3. Step 3: Cross multiply
    3,075.52x = 4,613.54 × 994.72
  4. Step 4: Simplify right side
    3,075.52x = 4,589,180.51
  5. Step 5: Solve for x
    x = 4,589,180.51/3,075.52
  6. Step 6: Final answer
    x = 1,492.16

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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.