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Finding the Fourth Proportional to 70,577.30, 97,393.72 and 38,746.93

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Solution

The fourth proportional to 70,577.30, 97,393.72 and 38,746.93 is: 53,469.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,577.30 : 97,393.72 = 38,746.93 : x
  2. Step 2: Convert to fraction form
    70,577.30/97,393.72 = 38,746.93/x
  3. Step 3: Cross multiply
    70,577.30x = 97,393.72 × 38,746.93
  4. Step 4: Simplify right side
    70,577.30x = 3,773,707,651.28
  5. Step 5: Solve for x
    x = 3,773,707,651.28/70,577.30
  6. Step 6: Final answer
    x = 53,469.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.