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Finding the Fourth Proportional to 58,302.70, 87,432.58 and 20,852.62

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Solution

The fourth proportional to 58,302.70, 87,432.58 and 20,852.62 is: 31,271.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,302.70 : 87,432.58 = 20,852.62 : x
  2. Step 2: Convert to fraction form
    58,302.70/87,432.58 = 20,852.62/x
  3. Step 3: Cross multiply
    58,302.70x = 87,432.58 × 20,852.62
  4. Step 4: Simplify right side
    58,302.70x = 1,823,198,366.36
  5. Step 5: Solve for x
    x = 1,823,198,366.36/58,302.70
  6. Step 6: Final answer
    x = 31,271.25

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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.