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Finding the Fourth Proportional to 58,941.60, 88,412.40 and 40,279.20

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Solution

The fourth proportional to 58,941.60, 88,412.40 and 40,279.20 is: 60,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,941.60 : 88,412.40 = 40,279.20 : x
  2. Step 2: Convert to fraction form
    58,941.60/88,412.40 = 40,279.20/x
  3. Step 3: Cross multiply
    58,941.60x = 88,412.40 × 40,279.20
  4. Step 4: Simplify right side
    58,941.60x = 3,561,180,742.08
  5. Step 5: Solve for x
    x = 3,561,180,742.08/58,941.60
  6. Step 6: Final answer
    x = 60,418.80

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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.