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Finding the Fourth Proportional to 9,989,547.68, 14,978,253.60 and 3,917,004.04

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Solution

The fourth proportional to 9,989,547.68, 14,978,253.60 and 3,917,004.04 is: 5,873,126.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,547.68 : 14,978,253.60 = 3,917,004.04 : x
  2. Step 2: Convert to fraction form
    9,989,547.68/14,978,253.60 = 3,917,004.04/x
  3. Step 3: Cross multiply
    9,989,547.68x = 14,978,253.60 × 3,917,004.04
  4. Step 4: Simplify right side
    9,989,547.68x = 58,669,879,863,344.55
  5. Step 5: Solve for x
    x = 58,669,879,863,344.55/9,989,547.68
  6. Step 6: Final answer
    x = 5,873,126.77

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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.