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Finding the Third Proportional to 21,341,988.38 and 45,920,881.50

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Solution

The third proportional to 21,341,988.38 and 45,920,881.50 is: 98,806,508.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341,988.38 : 45,920,881.50 = 45,920,881.50 : x
  2. Step 2: Convert to fraction form
    21,341,988.38/45,920,881.50 = 45,920,881.50/x
  3. Step 3: Cross multiply
    21,341,988.38x = 45,920,881.50 × 45,920,881.50
  4. Step 4: Simplify right side
    21,341,988.38x = 2,108,727,357,737,042.25
  5. Step 5: Solve for x
    x = 2,108,727,357,737,042.25/21,341,988.38
  6. Step 6: Final answer
    x = 98,806,508.59

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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.