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Finding the Third Proportional to 5,316,784.31 and 8,248,561.59

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Solution

The third proportional to 5,316,784.31 and 8,248,561.59 is: 12,796,977.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316,784.31 : 8,248,561.59 = 8,248,561.59 : x
  2. Step 2: Convert to fraction form
    5,316,784.31/8,248,561.59 = 8,248,561.59/x
  3. Step 3: Cross multiply
    5,316,784.31x = 8,248,561.59 × 8,248,561.59
  4. Step 4: Simplify right side
    5,316,784.31x = 68,038,768,365,887.54
  5. Step 5: Solve for x
    x = 68,038,768,365,887.54/5,316,784.31
  6. Step 6: Final answer
    x = 12,796,977.34

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.