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Finding the Fourth Proportional to 9,753.76, 13,460.34 and 5,561.74

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Solution

The fourth proportional to 9,753.76, 13,460.34 and 5,561.74 is: 7,675.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,753.76 : 13,460.34 = 5,561.74 : x
  2. Step 2: Convert to fraction form
    9,753.76/13,460.34 = 5,561.74/x
  3. Step 3: Cross multiply
    9,753.76x = 13,460.34 × 5,561.74
  4. Step 4: Simplify right side
    9,753.76x = 74,862,911.39
  5. Step 5: Solve for x
    x = 74,862,911.39/9,753.76
  6. Step 6: Final answer
    x = 7,675.29

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1.5x scale

Why These Related Problems?

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