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Finding the Fourth Proportional to 74,970.96, 112,461.84 and 22,380.90

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Solution

The fourth proportional to 74,970.96, 112,461.84 and 22,380.90 is: 33,572.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,970.96 : 112,461.84 = 22,380.90 : x
  2. Step 2: Convert to fraction form
    74,970.96/112,461.84 = 22,380.90/x
  3. Step 3: Cross multiply
    74,970.96x = 112,461.84 × 22,380.90
  4. Step 4: Simplify right side
    74,970.96x = 2,516,997,194.86
  5. Step 5: Solve for x
    x = 2,516,997,194.86/74,970.96
  6. Step 6: Final answer
    x = 33,572.96

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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.