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Finding the Third Proportional to 9,988,499.81 and 21,492,955.13

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Solution

The third proportional to 9,988,499.81 and 21,492,955.13 is: 46,247,897.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988,499.81 : 21,492,955.13 = 21,492,955.13 : x
  2. Step 2: Convert to fraction form
    9,988,499.81/21,492,955.13 = 21,492,955.13/x
  3. Step 3: Cross multiply
    9,988,499.81x = 21,492,955.13 × 21,492,955.13
  4. Step 4: Simplify right side
    9,988,499.81x = 461,947,120,005,263.75
  5. Step 5: Solve for x
    x = 461,947,120,005,263.75/9,988,499.81
  6. Step 6: Final answer
    x = 46,247,897.95

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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.