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Finding the Fourth Proportional to 35,611.70, 53,417.55 and 17,179.70

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Solution

The fourth proportional to 35,611.70, 53,417.55 and 17,179.70 is: 25,769.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,611.70 : 53,417.55 = 17,179.70 : x
  2. Step 2: Convert to fraction form
    35,611.70/53,417.55 = 17,179.70/x
  3. Step 3: Cross multiply
    35,611.70x = 53,417.55 × 17,179.70
  4. Step 4: Simplify right side
    35,611.70x = 917,697,483.74
  5. Step 5: Solve for x
    x = 917,697,483.74/35,611.70
  6. Step 6: Final answer
    x = 25,769.55

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1.5x scale

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.