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Finding the Fourth Proportional to 56,643.50, 84,959.75 and 17,200.95

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Solution

The fourth proportional to 56,643.50, 84,959.75 and 17,200.95 is: 25,799.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,643.50 : 84,959.75 = 17,200.95 : x
  2. Step 2: Convert to fraction form
    56,643.50/84,959.75 = 17,200.95/x
  3. Step 3: Cross multiply
    56,643.50x = 84,959.75 × 17,200.95
  4. Step 4: Simplify right side
    56,643.50x = 1,461,388,325.76
  5. Step 5: Solve for x
    x = 1,461,388,325.76/56,643.50
  6. Step 6: Final answer
    x = 25,799.76

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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.