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Finding the Fourth Proportional to 13,608,009.60, 20,412,014.40 and 9,073,046.40

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Solution

The fourth proportional to 13,608,009.60, 20,412,014.40 and 9,073,046.40 is: 13,609,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,009.60 : 20,412,014.40 = 9,073,046.40 : x
  2. Step 2: Convert to fraction form
    13,608,009.60/20,412,014.40 = 9,073,046.40/x
  3. Step 3: Cross multiply
    13,608,009.60x = 20,412,014.40 × 9,073,046.40
  4. Step 4: Simplify right side
    13,608,009.60x = 185,199,153,768,668.16
  5. Step 5: Solve for x
    x = 185,199,153,768,668.16/13,608,009.60
  6. Step 6: Final answer
    x = 13,609,569.60

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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.