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Finding the Fourth Proportional to 72,280.51, 108,467.03 and 39,023.76

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Solution

The fourth proportional to 72,280.51, 108,467.03 and 39,023.76 is: 58,560.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,280.51 : 108,467.03 = 39,023.76 : x
  2. Step 2: Convert to fraction form
    72,280.51/108,467.03 = 39,023.76/x
  3. Step 3: Cross multiply
    72,280.51x = 108,467.03 × 39,023.76
  4. Step 4: Simplify right side
    72,280.51x = 4,232,791,346.63
  5. Step 5: Solve for x
    x = 4,232,791,346.63/72,280.51
  6. Step 6: Final answer
    x = 58,560.62

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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.