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Finding the Fourth Proportional to 8,473,999.71, 12,706,212.59 and 7,750,948.81

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Solution

The fourth proportional to 8,473,999.71, 12,706,212.59 and 7,750,948.81 is: 11,622,044.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473,999.71 : 12,706,212.59 = 7,750,948.81 : x
  2. Step 2: Convert to fraction form
    8,473,999.71/12,706,212.59 = 7,750,948.81/x
  3. Step 3: Cross multiply
    8,473,999.71x = 12,706,212.59 × 7,750,948.81
  4. Step 4: Simplify right side
    8,473,999.71x = 98,485,203,283,547.25
  5. Step 5: Solve for x
    x = 98,485,203,283,547.25/8,473,999.71
  6. Step 6: Final answer
    x = 11,622,044.68

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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.