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Finding the Fourth Proportional to 62,953.60, 94,430.40 and 21,400.60

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Solution

The fourth proportional to 62,953.60, 94,430.40 and 21,400.60 is: 32,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,953.60 : 94,430.40 = 21,400.60 : x
  2. Step 2: Convert to fraction form
    62,953.60/94,430.40 = 21,400.60/x
  3. Step 3: Cross multiply
    62,953.60x = 94,430.40 × 21,400.60
  4. Step 4: Simplify right side
    62,953.60x = 2,020,867,218.24
  5. Step 5: Solve for x
    x = 2,020,867,218.24/62,953.60
  6. Step 6: Final answer
    x = 32,100.90

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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.