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Finding the Fourth Proportional to 74,321.40, 111,482.10 and 24,409.20

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Solution

The fourth proportional to 74,321.40, 111,482.10 and 24,409.20 is: 36,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,321.40 : 111,482.10 = 24,409.20 : x
  2. Step 2: Convert to fraction form
    74,321.40/111,482.10 = 24,409.20/x
  3. Step 3: Cross multiply
    74,321.40x = 111,482.10 × 24,409.20
  4. Step 4: Simplify right side
    74,321.40x = 2,721,188,875.32
  5. Step 5: Solve for x
    x = 2,721,188,875.32/74,321.40
  6. Step 6: Final answer
    x = 36,613.80

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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.