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Finding the Fourth Proportional to 74,467.60, 102,762.12 and 40,933.52

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Solution

The fourth proportional to 74,467.60, 102,762.12 and 40,933.52 is: 56,486.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,467.60 : 102,762.12 = 40,933.52 : x
  2. Step 2: Convert to fraction form
    74,467.60/102,762.12 = 40,933.52/x
  3. Step 3: Cross multiply
    74,467.60x = 102,762.12 × 40,933.52
  4. Step 4: Simplify right side
    74,467.60x = 4,206,415,294.26
  5. Step 5: Solve for x
    x = 4,206,415,294.26/74,467.60
  6. Step 6: Final answer
    x = 56,486.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.