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Finding the Fourth Proportional to 13,759,809.60, 20,639,714.40 and 6,201,537.60

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Solution

The fourth proportional to 13,759,809.60, 20,639,714.40 and 6,201,537.60 is: 9,302,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,759,809.60 : 20,639,714.40 = 6,201,537.60 : x
  2. Step 2: Convert to fraction form
    13,759,809.60/20,639,714.40 = 6,201,537.60/x
  3. Step 3: Cross multiply
    13,759,809.60x = 20,639,714.40 × 6,201,537.60
  4. Step 4: Simplify right side
    13,759,809.60x = 127,997,964,904,861.42
  5. Step 5: Solve for x
    x = 127,997,964,904,861.42/13,759,809.60
  6. Step 6: Final answer
    x = 9,302,306.40

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Similar ratio
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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.