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Finding the Fourth Proportional to 58,686.34, 80,979.70 and 34,808.35

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Solution

The fourth proportional to 58,686.34, 80,979.70 and 34,808.35 is: 48,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,686.34 : 80,979.70 = 34,808.35 : x
  2. Step 2: Convert to fraction form
    58,686.34/80,979.70 = 34,808.35/x
  3. Step 3: Cross multiply
    58,686.34x = 80,979.70 × 34,808.35
  4. Step 4: Simplify right side
    58,686.34x = 2,818,769,740.50
  5. Step 5: Solve for x
    x = 2,818,769,740.50/58,686.34
  6. Step 6: Final answer
    x = 48,031.10

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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.