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Finding the Fourth Proportional to 13,712.00, 20,568.01 and 4,946.91

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Solution

The fourth proportional to 13,712.00, 20,568.01 and 4,946.91 is: 7,420.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.00 : 20,568.01 = 4,946.91 : x
  2. Step 2: Convert to fraction form
    13,712.00/20,568.01 = 4,946.91/x
  3. Step 3: Cross multiply
    13,712.00x = 20,568.01 × 4,946.91
  4. Step 4: Simplify right side
    13,712.00x = 101,748,152.93
  5. Step 5: Solve for x
    x = 101,748,152.93/13,712.00
  6. Step 6: Final answer
    x = 7,420.37

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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.