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Finding the Fourth Proportional to 42,047.25, 63,070.88 and 17,100.87

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Solution

The fourth proportional to 42,047.25, 63,070.88 and 17,100.87 is: 25,651.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,047.25 : 63,070.88 = 17,100.87 : x
  2. Step 2: Convert to fraction form
    42,047.25/63,070.88 = 17,100.87/x
  3. Step 3: Cross multiply
    42,047.25x = 63,070.88 × 17,100.87
  4. Step 4: Simplify right side
    42,047.25x = 1,078,566,834.16
  5. Step 5: Solve for x
    x = 1,078,566,834.16/42,047.25
  6. Step 6: Final answer
    x = 25,651.31

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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.