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Finding the Fourth Proportional to 8,583,903.60, 12,875,855.40 and 3,264,428.40

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Solution

The fourth proportional to 8,583,903.60, 12,875,855.40 and 3,264,428.40 is: 4,896,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,583,903.60 : 12,875,855.40 = 3,264,428.40 : x
  2. Step 2: Convert to fraction form
    8,583,903.60/12,875,855.40 = 3,264,428.40/x
  3. Step 3: Cross multiply
    8,583,903.60x = 12,875,855.40 × 3,264,428.40
  4. Step 4: Simplify right side
    8,583,903.60x = 42,032,308,042,053.36
  5. Step 5: Solve for x
    x = 42,032,308,042,053.36/8,583,903.60
  6. Step 6: Final answer
    x = 4,896,642.60

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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.