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Finding the Fourth Proportional to 65,020, 97,530.04 and 15,772

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Solution

The fourth proportional to 65,020, 97,530.04 and 15,772 is: 23,658.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,020 : 97,530.04 = 15,772 : x
  2. Step 2: Convert to fraction form
    65,020/97,530.04 = 15,772/x
  3. Step 3: Cross multiply
    65,020x = 97,530.04 × 15,772
  4. Step 4: Simplify right side
    65,020x = 1,538,243,790.88
  5. Step 5: Solve for x
    x = 1,538,243,790.88/65,020
  6. Step 6: Final answer
    x = 23,658.01

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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.