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Finding the Fourth Proportional to 59,971.20, 89,956.80 and 37,809.60

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Solution

The fourth proportional to 59,971.20, 89,956.80 and 37,809.60 is: 56,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,971.20 : 89,956.80 = 37,809.60 : x
  2. Step 2: Convert to fraction form
    59,971.20/89,956.80 = 37,809.60/x
  3. Step 3: Cross multiply
    59,971.20x = 89,956.80 × 37,809.60
  4. Step 4: Simplify right side
    59,971.20x = 3,401,230,625.28
  5. Step 5: Solve for x
    x = 3,401,230,625.28/59,971.20
  6. Step 6: Final answer
    x = 56,714.40

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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.