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Finding the Fourth Proportional to 17,897.64, 26,854.62 and 9,128.04

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Solution

The fourth proportional to 17,897.64, 26,854.62 and 9,128.04 is: 13,696.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,897.64 : 26,854.62 = 9,128.04 : x
  2. Step 2: Convert to fraction form
    17,897.64/26,854.62 = 9,128.04/x
  3. Step 3: Cross multiply
    17,897.64x = 26,854.62 × 9,128.04
  4. Step 4: Simplify right side
    17,897.64x = 245,130,045.54
  5. Step 5: Solve for x
    x = 245,130,045.54/17,897.64
  6. Step 6: Final answer
    x = 13,696.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.