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Finding the Fourth Proportional to 58,269.40, 87,447.30 and 38,541.40

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Solution

The fourth proportional to 58,269.40, 87,447.30 and 38,541.40 is: 57,840.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,269.40 : 87,447.30 = 38,541.40 : x
  2. Step 2: Convert to fraction form
    58,269.40/87,447.30 = 38,541.40/x
  3. Step 3: Cross multiply
    58,269.40x = 87,447.30 × 38,541.40
  4. Step 4: Simplify right side
    58,269.40x = 3,370,341,368.22
  5. Step 5: Solve for x
    x = 3,370,341,368.22/58,269.40
  6. Step 6: Final answer
    x = 57,840.67

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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.