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Finding the Fourth Proportional to 43,643,427.60, 65,465,141.40 and 43,643,427.60

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Solution

The fourth proportional to 43,643,427.60, 65,465,141.40 and 43,643,427.60 is: 65,465,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,643,427.60 : 65,465,141.40 = 43,643,427.60 : x
  2. Step 2: Convert to fraction form
    43,643,427.60/65,465,141.40 = 43,643,427.60/x
  3. Step 3: Cross multiply
    43,643,427.60x = 65,465,141.40 × 43,643,427.60
  4. Step 4: Simplify right side
    43,643,427.60x = 2,857,123,159,014,662.50
  5. Step 5: Solve for x
    x = 2,857,123,159,014,662.50/43,643,427.60
  6. Step 6: Final answer
    x = 65,465,141.40

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Double scale
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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.