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Finding the Fourth Proportional to 20,146,714.60, 30,220,071.90 and 17,028,927.40

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Solution

The fourth proportional to 20,146,714.60, 30,220,071.90 and 17,028,927.40 is: 25,543,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146,714.60 : 30,220,071.90 = 17,028,927.40 : x
  2. Step 2: Convert to fraction form
    20,146,714.60/30,220,071.90 = 17,028,927.40/x
  3. Step 3: Cross multiply
    20,146,714.60x = 30,220,071.90 × 17,028,927.40
  4. Step 4: Simplify right side
    20,146,714.60x = 514,615,410,407,880
  5. Step 5: Solve for x
    x = 514,615,410,407,880/20,146,714.60
  6. Step 6: Final answer
    x = 25,543,391.10

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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.