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Finding the Third Proportional to 28,742,072 and 43,411,515

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Solution

The third proportional to 28,742,072 and 43,411,515 is: 65,567,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742,072 : 43,411,515 = 43,411,515 : x
  2. Step 2: Convert to fraction form
    28,742,072/43,411,515 = 43,411,515/x
  3. Step 3: Cross multiply
    28,742,072x = 43,411,515 × 43,411,515
  4. Step 4: Simplify right side
    28,742,072x = 1,884,559,634,595,225
  5. Step 5: Solve for x
    x = 1,884,559,634,595,225/28,742,072
  6. Step 6: Final answer
    x = 65,567,981.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.