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Finding the Third Proportional to 7,280,076 and 15,676,440

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Solution

The third proportional to 7,280,076 and 15,676,440 is: 33,756,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280,076 : 15,676,440 = 15,676,440 : x
  2. Step 2: Convert to fraction form
    7,280,076/15,676,440 = 15,676,440/x
  3. Step 3: Cross multiply
    7,280,076x = 15,676,440 × 15,676,440
  4. Step 4: Simplify right side
    7,280,076x = 245,750,771,073,600
  5. Step 5: Solve for x
    x = 245,750,771,073,600/7,280,076
  6. Step 6: Final answer
    x = 33,756,621.64

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.