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Finding the Fourth Proportional to 3,492.84, 5,239.72 and 1,153.08

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Solution

The fourth proportional to 3,492.84, 5,239.72 and 1,153.08 is: 1,729.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.84 : 5,239.72 = 1,153.08 : x
  2. Step 2: Convert to fraction form
    3,492.84/5,239.72 = 1,153.08/x
  3. Step 3: Cross multiply
    3,492.84x = 5,239.72 × 1,153.08
  4. Step 4: Simplify right side
    3,492.84x = 6,041,816.34
  5. Step 5: Solve for x
    x = 6,041,816.34/3,492.84
  6. Step 6: Final answer
    x = 1,729.77

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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.