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Finding the Fourth Proportional to 17,921,808,019.20, 26,831,055,963.60 and 17,921,808,019.20

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Solution

The fourth proportional to 17,921,808,019.20, 26,831,055,963.60 and 17,921,808,019.20 is: 26,831,055,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921,808,019.20 : 26,831,055,963.60 = 17,921,808,019.20 : x
  2. Step 2: Convert to fraction form
    17,921,808,019.20/26,831,055,963.60 = 17,921,808,019.20/x
  3. Step 3: Cross multiply
    17,921,808,019.20x = 26,831,055,963.60 × 17,921,808,019.20
  4. Step 4: Simplify right side
    17,921,808,019.20x = 480,861,033,932,050,464,768
  5. Step 5: Solve for x
    x = 480,861,033,932,050,464,768/17,921,808,019.20
  6. Step 6: Final answer
    x = 26,831,055,963.60

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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.