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Finding the Fourth Proportional to 7,806,053.90, 11,715,806.90 and 5,411,580.04

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Solution

The fourth proportional to 7,806,053.90, 11,715,806.90 and 5,411,580.04 is: 8,122,032.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,806,053.90 : 11,715,806.90 = 5,411,580.04 : x
  2. Step 2: Convert to fraction form
    7,806,053.90/11,715,806.90 = 5,411,580.04/x
  3. Step 3: Cross multiply
    7,806,053.90x = 11,715,806.90 × 5,411,580.04
  4. Step 4: Simplify right side
    7,806,053.90x = 63,401,026,772,534.28
  5. Step 5: Solve for x
    x = 63,401,026,772,534.28/7,806,053.90
  6. Step 6: Final answer
    x = 8,122,032.92

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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.