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Finding the Fourth Proportional to 8,616,386.88, 11,890,630.56 and 4,696,186.68

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Solution

The fourth proportional to 8,616,386.88, 11,890,630.56 and 4,696,186.68 is: 6,480,746.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616,386.88 : 11,890,630.56 = 4,696,186.68 : x
  2. Step 2: Convert to fraction form
    8,616,386.88/11,890,630.56 = 4,696,186.68/x
  3. Step 3: Cross multiply
    8,616,386.88x = 11,890,630.56 × 4,696,186.68
  4. Step 4: Simplify right side
    8,616,386.88x = 55,840,620,852,672.94
  5. Step 5: Solve for x
    x = 55,840,620,852,672.94/8,616,386.88
  6. Step 6: Final answer
    x = 6,480,746.70

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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.