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Finding the Fourth Proportional to 7,558.68, 10,428.16 and 5,574

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Solution

The fourth proportional to 7,558.68, 10,428.16 and 5,574 is: 7,690.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,558.68 : 10,428.16 = 5,574 : x
  2. Step 2: Convert to fraction form
    7,558.68/10,428.16 = 5,574/x
  3. Step 3: Cross multiply
    7,558.68x = 10,428.16 × 5,574
  4. Step 4: Simplify right side
    7,558.68x = 58,126,563.84
  5. Step 5: Solve for x
    x = 58,126,563.84/7,558.68
  6. Step 6: Final answer
    x = 7,690.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.