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Finding the Fourth Proportional to 56,900.34, 78,503.74 and 36,769.08

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Solution

The fourth proportional to 56,900.34, 78,503.74 and 36,769.08 is: 50,729.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,900.34 : 78,503.74 = 36,769.08 : x
  2. Step 2: Convert to fraction form
    56,900.34/78,503.74 = 36,769.08/x
  3. Step 3: Cross multiply
    56,900.34x = 78,503.74 × 36,769.08
  4. Step 4: Simplify right side
    56,900.34x = 2,886,510,296.36
  5. Step 5: Solve for x
    x = 2,886,510,296.36/56,900.34
  6. Step 6: Final answer
    x = 50,729.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.