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Finding the Fourth Proportional to 70,627.83, 105,941.90 and 17,320.03

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Solution

The fourth proportional to 70,627.83, 105,941.90 and 17,320.03 is: 25,980.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,627.83 : 105,941.90 = 17,320.03 : x
  2. Step 2: Convert to fraction form
    70,627.83/105,941.90 = 17,320.03/x
  3. Step 3: Cross multiply
    70,627.83x = 105,941.90 × 17,320.03
  4. Step 4: Simplify right side
    70,627.83x = 1,834,916,886.26
  5. Step 5: Solve for x
    x = 1,834,916,886.26/70,627.83
  6. Step 6: Final answer
    x = 25,980.08

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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.