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Finding the Fourth Proportional to 74,970.28, 112,455.44 and 19,566.28

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Solution

The fourth proportional to 74,970.28, 112,455.44 and 19,566.28 is: 29,349.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,970.28 : 112,455.44 = 19,566.28 : x
  2. Step 2: Convert to fraction form
    74,970.28/112,455.44 = 19,566.28/x
  3. Step 3: Cross multiply
    74,970.28x = 112,455.44 × 19,566.28
  4. Step 4: Simplify right side
    74,970.28x = 2,200,334,626.56
  5. Step 5: Solve for x
    x = 2,200,334,626.56/74,970.28
  6. Step 6: Final answer
    x = 29,349.43

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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.