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Finding the Fourth Proportional to 5,642,681.16, 8,462,890.08 and 2,762,807.16

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Solution

The fourth proportional to 5,642,681.16, 8,462,890.08 and 2,762,807.16 is: 4,143,656.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642,681.16 : 8,462,890.08 = 2,762,807.16 : x
  2. Step 2: Convert to fraction form
    5,642,681.16/8,462,890.08 = 2,762,807.16/x
  3. Step 3: Cross multiply
    5,642,681.16x = 8,462,890.08 × 2,762,807.16
  4. Step 4: Simplify right side
    5,642,681.16x = 23,381,333,307,316.97
  5. Step 5: Solve for x
    x = 23,381,333,307,316.97/5,642,681.16
  6. Step 6: Final answer
    x = 4,143,656.65

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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.