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Finding the Fourth Proportional to 58,428.80, 87,643.20 and 35,100.80

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Solution

The fourth proportional to 58,428.80, 87,643.20 and 35,100.80 is: 52,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,428.80 : 87,643.20 = 35,100.80 : x
  2. Step 2: Convert to fraction form
    58,428.80/87,643.20 = 35,100.80/x
  3. Step 3: Cross multiply
    58,428.80x = 87,643.20 × 35,100.80
  4. Step 4: Simplify right side
    58,428.80x = 3,076,346,434.56
  5. Step 5: Solve for x
    x = 3,076,346,434.56/58,428.80
  6. Step 6: Final answer
    x = 52,651.20

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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.