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Finding the Fourth Proportional to 35,890.40, 53,828.40 and 17,170.40

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Solution

The fourth proportional to 35,890.40, 53,828.40 and 17,170.40 is: 25,752.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,890.40 : 53,828.40 = 17,170.40 : x
  2. Step 2: Convert to fraction form
    35,890.40/53,828.40 = 17,170.40/x
  3. Step 3: Cross multiply
    35,890.40x = 53,828.40 × 17,170.40
  4. Step 4: Simplify right side
    35,890.40x = 924,255,159.36
  5. Step 5: Solve for x
    x = 924,255,159.36/35,890.40
  6. Step 6: Final answer
    x = 25,752.16

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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.