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Finding the Fourth Proportional to 53,143.20, 79,714.80 and 44,686.80

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Solution

The fourth proportional to 53,143.20, 79,714.80 and 44,686.80 is: 67,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,143.20 : 79,714.80 = 44,686.80 : x
  2. Step 2: Convert to fraction form
    53,143.20/79,714.80 = 44,686.80/x
  3. Step 3: Cross multiply
    53,143.20x = 79,714.80 × 44,686.80
  4. Step 4: Simplify right side
    53,143.20x = 3,562,199,324.64
  5. Step 5: Solve for x
    x = 3,562,199,324.64/53,143.20
  6. Step 6: Final answer
    x = 67,030.20

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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.