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Finding the Fourth Proportional to 13,952.64, 19,258.08 and 8,644.32

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Solution

The fourth proportional to 13,952.64, 19,258.08 and 8,644.32 is: 11,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.64 : 19,258.08 = 8,644.32 : x
  2. Step 2: Convert to fraction form
    13,952.64/19,258.08 = 8,644.32/x
  3. Step 3: Cross multiply
    13,952.64x = 19,258.08 × 8,644.32
  4. Step 4: Simplify right side
    13,952.64x = 166,473,006.11
  5. Step 5: Solve for x
    x = 166,473,006.11/13,952.64
  6. Step 6: Final answer
    x = 11,931.29

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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.