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Finding the Fourth Proportional to 58,490.40, 87,800.40 and 36,328.80

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Solution

The fourth proportional to 58,490.40, 87,800.40 and 36,328.80 is: 54,533.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,490.40 : 87,800.40 = 36,328.80 : x
  2. Step 2: Convert to fraction form
    58,490.40/87,800.40 = 36,328.80/x
  3. Step 3: Cross multiply
    58,490.40x = 87,800.40 × 36,328.80
  4. Step 4: Simplify right side
    58,490.40x = 3,189,683,171.52
  5. Step 5: Solve for x
    x = 3,189,683,171.52/58,490.40
  6. Step 6: Final answer
    x = 54,533.45

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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.