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Finding the Fourth Proportional to 19,392,938.80, 26,762,461.80 and 10,691,422.81

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Solution

The fourth proportional to 19,392,938.80, 26,762,461.80 and 10,691,422.81 is: 14,754,277.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392,938.80 : 26,762,461.80 = 10,691,422.81 : x
  2. Step 2: Convert to fraction form
    19,392,938.80/26,762,461.80 = 10,691,422.81/x
  3. Step 3: Cross multiply
    19,392,938.80x = 26,762,461.80 × 10,691,422.81
  4. Step 4: Simplify right side
    19,392,938.80x = 286,128,794,540,273.69
  5. Step 5: Solve for x
    x = 286,128,794,540,273.69/19,392,938.80
  6. Step 6: Final answer
    x = 14,754,277.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.