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Finding the Fourth Proportional to 78,968.25, 118,472.90 and 23,564.25

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Solution

The fourth proportional to 78,968.25, 118,472.90 and 23,564.25 is: 35,352.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,968.25 : 118,472.90 = 23,564.25 : x
  2. Step 2: Convert to fraction form
    78,968.25/118,472.90 = 23,564.25/x
  3. Step 3: Cross multiply
    78,968.25x = 118,472.90 × 23,564.25
  4. Step 4: Simplify right side
    78,968.25x = 2,791,724,916.00
  5. Step 5: Solve for x
    x = 2,791,724,916.00/78,968.25
  6. Step 6: Final answer
    x = 35,352.50

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1.5x scale

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.