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Finding the Fourth Proportional to 58,658.92, 80,938.20 and 34,776.88

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Solution

The fourth proportional to 58,658.92, 80,938.20 and 34,776.88 is: 47,985.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,658.92 : 80,938.20 = 34,776.88 : x
  2. Step 2: Convert to fraction form
    58,658.92/80,938.20 = 34,776.88/x
  3. Step 3: Cross multiply
    58,658.92x = 80,938.20 × 34,776.88
  4. Step 4: Simplify right side
    58,658.92x = 2,814,778,068.82
  5. Step 5: Solve for x
    x = 2,814,778,068.82/58,658.92
  6. Step 6: Final answer
    x = 47,985.51

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1.5x scale

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.