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Finding the Fourth Proportional to 6,592,995.79, 9,892,865.94 and 3,138,638.51

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Solution

The fourth proportional to 6,592,995.79, 9,892,865.94 and 3,138,638.51 is: 4,709,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,592,995.79 : 9,892,865.94 = 3,138,638.51 : x
  2. Step 2: Convert to fraction form
    6,592,995.79/9,892,865.94 = 3,138,638.51/x
  3. Step 3: Cross multiply
    6,592,995.79x = 9,892,865.94 × 3,138,638.51
  4. Step 4: Simplify right side
    6,592,995.79x = 31,050,130,038,283.52
  5. Step 5: Solve for x
    x = 31,050,130,038,283.52/6,592,995.79
  6. Step 6: Final answer
    x = 4,709,563.15

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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.