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Finding the Fourth Proportional to 5,326,585.66, 7,978,316.62 and 3,271,008.10

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Solution

The fourth proportional to 5,326,585.66, 7,978,316.62 and 3,271,008.10 is: 4,899,412.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326,585.66 : 7,978,316.62 = 3,271,008.10 : x
  2. Step 2: Convert to fraction form
    5,326,585.66/7,978,316.62 = 3,271,008.10/x
  3. Step 3: Cross multiply
    5,326,585.66x = 7,978,316.62 × 3,271,008.10
  4. Step 4: Simplify right side
    5,326,585.66x = 26,097,138,288,384.62
  5. Step 5: Solve for x
    x = 26,097,138,288,384.62/5,326,585.66
  6. Step 6: Final answer
    x = 4,899,412.11

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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.