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Finding the Fourth Proportional to 58,503.75, 87,755.14 and 30,409.30

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Solution

The fourth proportional to 58,503.75, 87,755.14 and 30,409.30 is: 45,613.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,503.75 : 87,755.14 = 30,409.30 : x
  2. Step 2: Convert to fraction form
    58,503.75/87,755.14 = 30,409.30/x
  3. Step 3: Cross multiply
    58,503.75x = 87,755.14 × 30,409.30
  4. Step 4: Simplify right side
    58,503.75x = 2,668,572,378.80
  5. Step 5: Solve for x
    x = 2,668,572,378.80/58,503.75
  6. Step 6: Final answer
    x = 45,613.70

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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.