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Finding the Fourth Proportional to 18,488.52, 25,484.16 and 14,448.28

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Solution

The fourth proportional to 18,488.52, 25,484.16 and 14,448.28 is: 19,915.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.52 : 25,484.16 = 14,448.28 : x
  2. Step 2: Convert to fraction form
    18,488.52/25,484.16 = 14,448.28/x
  3. Step 3: Cross multiply
    18,488.52x = 25,484.16 × 14,448.28
  4. Step 4: Simplify right side
    18,488.52x = 368,202,279.24
  5. Step 5: Solve for x
    x = 368,202,279.24/18,488.52
  6. Step 6: Final answer
    x = 19,915.18

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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.