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Finding the Fourth Proportional to 8,900.56, 13,410.92 and 7,374.52

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Solution

The fourth proportional to 8,900.56, 13,410.92 and 7,374.52 is: 11,111.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.56 : 13,410.92 = 7,374.52 : x
  2. Step 2: Convert to fraction form
    8,900.56/13,410.92 = 7,374.52/x
  3. Step 3: Cross multiply
    8,900.56x = 13,410.92 × 7,374.52
  4. Step 4: Simplify right side
    8,900.56x = 98,899,097.76
  5. Step 5: Solve for x
    x = 98,899,097.76/8,900.56
  6. Step 6: Final answer
    x = 11,111.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.