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Finding the Fourth Proportional to 2,473.60, 3,708.04 and 913.24

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Solution

The fourth proportional to 2,473.60, 3,708.04 and 913.24 is: 1,368.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,473.60 : 3,708.04 = 913.24 : x
  2. Step 2: Convert to fraction form
    2,473.60/3,708.04 = 913.24/x
  3. Step 3: Cross multiply
    2,473.60x = 3,708.04 × 913.24
  4. Step 4: Simplify right side
    2,473.60x = 3,386,330.45
  5. Step 5: Solve for x
    x = 3,386,330.45/2,473.60
  6. Step 6: Final answer
    x = 1,368.99

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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.