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Finding the Fourth Proportional to 9,570.64, 14,347.32 and 5,458

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Solution

The fourth proportional to 9,570.64, 14,347.32 and 5,458 is: 8,182.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,570.64 : 14,347.32 = 5,458 : x
  2. Step 2: Convert to fraction form
    9,570.64/14,347.32 = 5,458/x
  3. Step 3: Cross multiply
    9,570.64x = 14,347.32 × 5,458
  4. Step 4: Simplify right side
    9,570.64x = 78,307,672.56
  5. Step 5: Solve for x
    x = 78,307,672.56/9,570.64
  6. Step 6: Final answer
    x = 8,182.07

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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.