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Finding the Fourth Proportional to 8,893,816.40, 13,346,945.40 and 5,706,693.20

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Solution

The fourth proportional to 8,893,816.40, 13,346,945.40 and 5,706,693.20 is: 8,564,031.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893,816.40 : 13,346,945.40 = 5,706,693.20 : x
  2. Step 2: Convert to fraction form
    8,893,816.40/13,346,945.40 = 5,706,693.20/x
  3. Step 3: Cross multiply
    8,893,816.40x = 13,346,945.40 × 5,706,693.20
  4. Step 4: Simplify right side
    8,893,816.40x = 76,166,922,554,951.28
  5. Step 5: Solve for x
    x = 76,166,922,554,951.28/8,893,816.40
  6. Step 6: Final answer
    x = 8,564,031.36

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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.