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Finding the Fourth Proportional to 13,455,657.30, 20,183,485.95 and 13,455,657.30

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Solution

The fourth proportional to 13,455,657.30, 20,183,485.95 and 13,455,657.30 is: 20,183,485.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455,657.30 : 20,183,485.95 = 13,455,657.30 : x
  2. Step 2: Convert to fraction form
    13,455,657.30/20,183,485.95 = 13,455,657.30/x
  3. Step 3: Cross multiply
    13,455,657.30x = 20,183,485.95 × 13,455,657.30
  4. Step 4: Simplify right side
    13,455,657.30x = 271,582,070,062,564.94
  5. Step 5: Solve for x
    x = 271,582,070,062,564.94/13,455,657.30
  6. Step 6: Final answer
    x = 20,183,485.95

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Double scale
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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.