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Finding the Fourth Proportional to 6,602,902.64, 9,905,779.32 and 2,053,864.88

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Solution

The fourth proportional to 6,602,902.64, 9,905,779.32 and 2,053,864.88 is: 3,081,240.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,602,902.64 : 9,905,779.32 = 2,053,864.88 : x
  2. Step 2: Convert to fraction form
    6,602,902.64/9,905,779.32 = 2,053,864.88/x
  3. Step 3: Cross multiply
    6,602,902.64x = 9,905,779.32 × 2,053,864.88
  4. Step 4: Simplify right side
    6,602,902.64x = 20,345,132,254,378.28
  5. Step 5: Solve for x
    x = 20,345,132,254,378.28/6,602,902.64
  6. Step 6: Final answer
    x = 3,081,240.69

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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.