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Finding the Fourth Proportional to 58,295.40, 87,311.54 and 40,843.12

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Solution

The fourth proportional to 58,295.40, 87,311.54 and 40,843.12 is: 61,172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,295.40 : 87,311.54 = 40,843.12 : x
  2. Step 2: Convert to fraction form
    58,295.40/87,311.54 = 40,843.12/x
  3. Step 3: Cross multiply
    58,295.40x = 87,311.54 × 40,843.12
  4. Step 4: Simplify right side
    58,295.40x = 3,566,075,705.60
  5. Step 5: Solve for x
    x = 3,566,075,705.60/58,295.40
  6. Step 6: Final answer
    x = 61,172.51

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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.