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Finding the Fourth Proportional to 74,947.60, 112,421.40 and 37,622.80

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Solution

The fourth proportional to 74,947.60, 112,421.40 and 37,622.80 is: 56,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,947.60 : 112,421.40 = 37,622.80 : x
  2. Step 2: Convert to fraction form
    74,947.60/112,421.40 = 37,622.80/x
  3. Step 3: Cross multiply
    74,947.60x = 112,421.40 × 37,622.80
  4. Step 4: Simplify right side
    74,947.60x = 4,229,607,847.92
  5. Step 5: Solve for x
    x = 4,229,607,847.92/74,947.60
  6. Step 6: Final answer
    x = 56,434.20

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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.