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Finding the Fourth Proportional to 10,645.56, 14,679.74 and 7,952.56

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Solution

The fourth proportional to 10,645.56, 14,679.74 and 7,952.56 is: 10,966.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.56 : 14,679.74 = 7,952.56 : x
  2. Step 2: Convert to fraction form
    10,645.56/14,679.74 = 7,952.56/x
  3. Step 3: Cross multiply
    10,645.56x = 14,679.74 × 7,952.56
  4. Step 4: Simplify right side
    10,645.56x = 116,741,513.13
  5. Step 5: Solve for x
    x = 116,741,513.13/10,645.56
  6. Step 6: Final answer
    x = 10,966.22

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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.