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Finding the Fourth Proportional to 43,809.70, 65,714.55 and 29,812.90

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Solution

The fourth proportional to 43,809.70, 65,714.55 and 29,812.90 is: 44,719.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,809.70 : 65,714.55 = 29,812.90 : x
  2. Step 2: Convert to fraction form
    43,809.70/65,714.55 = 29,812.90/x
  3. Step 3: Cross multiply
    43,809.70x = 65,714.55 × 29,812.90
  4. Step 4: Simplify right side
    43,809.70x = 1,959,141,307.70
  5. Step 5: Solve for x
    x = 1,959,141,307.70/43,809.70
  6. Step 6: Final answer
    x = 44,719.35

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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.