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Finding the Fourth Proportional to 32,804.40, 45,276.26 and 20,545.50

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Solution

The fourth proportional to 32,804.40, 45,276.26 and 20,545.50 is: 28,356.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,804.40 : 45,276.26 = 20,545.50 : x
  2. Step 2: Convert to fraction form
    32,804.40/45,276.26 = 20,545.50/x
  3. Step 3: Cross multiply
    32,804.40x = 45,276.26 × 20,545.50
  4. Step 4: Simplify right side
    32,804.40x = 930,223,399.83
  5. Step 5: Solve for x
    x = 930,223,399.83/32,804.40
  6. Step 6: Final answer
    x = 28,356.67

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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.