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Finding the Fourth Proportional to 7,243,506.73, 9,986,050.98 and 5,778,388.02

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Solution

The fourth proportional to 7,243,506.73, 9,986,050.98 and 5,778,388.02 is: 7,966,207.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243,506.73 : 9,986,050.98 = 5,778,388.02 : x
  2. Step 2: Convert to fraction form
    7,243,506.73/9,986,050.98 = 5,778,388.02/x
  3. Step 3: Cross multiply
    7,243,506.73x = 9,986,050.98 × 5,778,388.02
  4. Step 4: Simplify right side
    7,243,506.73x = 57,703,277,387,388.95
  5. Step 5: Solve for x
    x = 57,703,277,387,388.95/7,243,506.73
  6. Step 6: Final answer
    x = 7,966,207.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.