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Finding the Fourth Proportional to 7,792,886.16, 11,690,426.52 and 2,401,971.12

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Solution

The fourth proportional to 7,792,886.16, 11,690,426.52 and 2,401,971.12 is: 3,603,294.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,792,886.16 : 11,690,426.52 = 2,401,971.12 : x
  2. Step 2: Convert to fraction form
    7,792,886.16/11,690,426.52 = 2,401,971.12/x
  3. Step 3: Cross multiply
    7,792,886.16x = 11,690,426.52 × 2,401,971.12
  4. Step 4: Simplify right side
    7,792,886.16x = 28,080,066,881,522.10
  5. Step 5: Solve for x
    x = 28,080,066,881,522.10/7,792,886.16
  6. Step 6: Final answer
    x = 3,603,294.89

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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.