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Finding the Fourth Proportional to 10,579,541.20, 15,844,428.60 and 10,579,541.20

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Solution

The fourth proportional to 10,579,541.20, 15,844,428.60 and 10,579,541.20 is: 15,844,428.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579,541.20 : 15,844,428.60 = 10,579,541.20 : x
  2. Step 2: Convert to fraction form
    10,579,541.20/15,844,428.60 = 10,579,541.20/x
  3. Step 3: Cross multiply
    10,579,541.20x = 15,844,428.60 × 10,579,541.20
  4. Step 4: Simplify right side
    10,579,541.20x = 167,626,785,164,158.31
  5. Step 5: Solve for x
    x = 167,626,785,164,158.31/10,579,541.20
  6. Step 6: Final answer
    x = 15,844,428.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.