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Finding the Fourth Proportional to 65,009.47, 97,503.06 and 20,626.33

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Solution

The fourth proportional to 65,009.47, 97,503.06 and 20,626.33 is: 30,935.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,009.47 : 97,503.06 = 20,626.33 : x
  2. Step 2: Convert to fraction form
    65,009.47/97,503.06 = 20,626.33/x
  3. Step 3: Cross multiply
    65,009.47x = 97,503.06 × 20,626.33
  4. Step 4: Simplify right side
    65,009.47x = 2,011,130,291.57
  5. Step 5: Solve for x
    x = 2,011,130,291.57/65,009.47
  6. Step 6: Final answer
    x = 30,935.96

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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.