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Finding the Fourth Proportional to 64,493.01, 96,762.20 and 20,130.93

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Solution

The fourth proportional to 64,493.01, 96,762.20 and 20,130.93 is: 30,203.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,493.01 : 96,762.20 = 20,130.93 : x
  2. Step 2: Convert to fraction form
    64,493.01/96,762.20 = 20,130.93/x
  3. Step 3: Cross multiply
    64,493.01x = 96,762.20 × 20,130.93
  4. Step 4: Simplify right side
    64,493.01x = 1,947,912,974.19
  5. Step 5: Solve for x
    x = 1,947,912,974.19/64,493.01
  6. Step 6: Final answer
    x = 30,203.47

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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.