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Finding the Fourth Proportional to 3,570.14, 5,354.80 and 973.28

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Solution

The fourth proportional to 3,570.14, 5,354.80 and 973.28 is: 1,459.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.14 : 5,354.80 = 973.28 : x
  2. Step 2: Convert to fraction form
    3,570.14/5,354.80 = 973.28/x
  3. Step 3: Cross multiply
    3,570.14x = 5,354.80 × 973.28
  4. Step 4: Simplify right side
    3,570.14x = 5,211,719.74
  5. Step 5: Solve for x
    x = 5,211,719.74/3,570.14
  6. Step 6: Final answer
    x = 1,459.81

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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.