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Finding the Third Proportional to 5,030,990.75 and 7,845,421.75

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Solution

The third proportional to 5,030,990.75 and 7,845,421.75 is: 12,234,298.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,030,990.75 : 7,845,421.75 = 7,845,421.75 : x
  2. Step 2: Convert to fraction form
    5,030,990.75/7,845,421.75 = 7,845,421.75/x
  3. Step 3: Cross multiply
    5,030,990.75x = 7,845,421.75 × 7,845,421.75
  4. Step 4: Simplify right side
    5,030,990.75x = 61,550,642,435,373.06
  5. Step 5: Solve for x
    x = 61,550,642,435,373.06/5,030,990.75
  6. Step 6: Final answer
    x = 12,234,298.47

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.