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Finding the Fourth Proportional to 58,947.20, 88,420.80 and 40,284.80

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Solution

The fourth proportional to 58,947.20, 88,420.80 and 40,284.80 is: 60,427.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,947.20 : 88,420.80 = 40,284.80 : x
  2. Step 2: Convert to fraction form
    58,947.20/88,420.80 = 40,284.80/x
  3. Step 3: Cross multiply
    58,947.20x = 88,420.80 × 40,284.80
  4. Step 4: Simplify right side
    58,947.20x = 3,562,014,243.84
  5. Step 5: Solve for x
    x = 3,562,014,243.84/58,947.20
  6. Step 6: Final answer
    x = 60,427.20

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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.