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Finding the Third Proportional to 7,124,820.75 and 15,528,421.41

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Solution

The third proportional to 7,124,820.75 and 15,528,421.41 is: 33,843,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124,820.75 : 15,528,421.41 = 15,528,421.41 : x
  2. Step 2: Convert to fraction form
    7,124,820.75/15,528,421.41 = 15,528,421.41/x
  3. Step 3: Cross multiply
    7,124,820.75x = 15,528,421.41 × 15,528,421.41
  4. Step 4: Simplify right side
    7,124,820.75x = 241,131,871,370,083.22
  5. Step 5: Solve for x
    x = 241,131,871,370,083.22/7,124,820.75
  6. Step 6: Final answer
    x = 33,843,921.11

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.