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Finding the Fourth Proportional to 38,610, 53,252.64 and 26,693.28

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Solution

The fourth proportional to 38,610, 53,252.64 and 26,693.28 is: 36,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,610 : 53,252.64 = 26,693.28 : x
  2. Step 2: Convert to fraction form
    38,610/53,252.64 = 26,693.28/x
  3. Step 3: Cross multiply
    38,610x = 53,252.64 × 26,693.28
  4. Step 4: Simplify right side
    38,610x = 1,421,487,630.26
  5. Step 5: Solve for x
    x = 1,421,487,630.26/38,610
  6. Step 6: Final answer
    x = 36,816.57

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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.