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Finding the Fourth Proportional to 58,607.30, 87,800.76 and 28,990.46

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Solution

The fourth proportional to 58,607.30, 87,800.76 and 28,990.46 is: 43,431.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,607.30 : 87,800.76 = 28,990.46 : x
  2. Step 2: Convert to fraction form
    58,607.30/87,800.76 = 28,990.46/x
  3. Step 3: Cross multiply
    58,607.30x = 87,800.76 × 28,990.46
  4. Step 4: Simplify right side
    58,607.30x = 2,545,384,420.75
  5. Step 5: Solve for x
    x = 2,545,384,420.75/58,607.30
  6. Step 6: Final answer
    x = 43,431.18

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1.5x scale

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.