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Finding the Fourth Proportional to 69,775.86, 104,663.88 and 25,402.98

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Solution

The fourth proportional to 69,775.86, 104,663.88 and 25,402.98 is: 38,104.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,775.86 : 104,663.88 = 25,402.98 : x
  2. Step 2: Convert to fraction form
    69,775.86/104,663.88 = 25,402.98/x
  3. Step 3: Cross multiply
    69,775.86x = 104,663.88 × 25,402.98
  4. Step 4: Simplify right side
    69,775.86x = 2,658,774,450.36
  5. Step 5: Solve for x
    x = 2,658,774,450.36/69,775.86
  6. Step 6: Final answer
    x = 38,104.50

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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.