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Finding the Fourth Proportional to 5,491.53, 7,579.55 and 4,294.15

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Solution

The fourth proportional to 5,491.53, 7,579.55 and 4,294.15 is: 5,926.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.53 : 7,579.55 = 4,294.15 : x
  2. Step 2: Convert to fraction form
    5,491.53/7,579.55 = 4,294.15/x
  3. Step 3: Cross multiply
    5,491.53x = 7,579.55 × 4,294.15
  4. Step 4: Simplify right side
    5,491.53x = 32,547,716.42
  5. Step 5: Solve for x
    x = 32,547,716.42/5,491.53
  6. Step 6: Final answer
    x = 5,926.89

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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.