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Finding the Fourth Proportional to 58,254.80, 87,209.40 and 38,555.60

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Solution

The fourth proportional to 58,254.80, 87,209.40 and 38,555.60 is: 57,719.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,254.80 : 87,209.40 = 38,555.60 : x
  2. Step 2: Convert to fraction form
    58,254.80/87,209.40 = 38,555.60/x
  3. Step 3: Cross multiply
    58,254.80x = 87,209.40 × 38,555.60
  4. Step 4: Simplify right side
    58,254.80x = 3,362,410,742.64
  5. Step 5: Solve for x
    x = 3,362,410,742.64/58,254.80
  6. Step 6: Final answer
    x = 57,719.03

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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.