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Finding the Fourth Proportional to 8,033,361.71, 12,047,483.75 and 2,640,769.19

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Solution

The fourth proportional to 8,033,361.71, 12,047,483.75 and 2,640,769.19 is: 3,960,312.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,033,361.71 : 12,047,483.75 = 2,640,769.19 : x
  2. Step 2: Convert to fraction form
    8,033,361.71/12,047,483.75 = 2,640,769.19/x
  3. Step 3: Cross multiply
    8,033,361.71x = 12,047,483.75 × 2,640,769.19
  4. Step 4: Simplify right side
    8,033,361.71x = 31,814,623,875,762.46
  5. Step 5: Solve for x
    x = 31,814,623,875,762.46/8,033,361.71
  6. Step 6: Final answer
    x = 3,960,312.64

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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.