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Finding the Fourth Proportional to 72,411.60, 108,549.36 and 37,341.84

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Solution

The fourth proportional to 72,411.60, 108,549.36 and 37,341.84 is: 55,977.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,411.60 : 108,549.36 = 37,341.84 : x
  2. Step 2: Convert to fraction form
    72,411.60/108,549.36 = 37,341.84/x
  3. Step 3: Cross multiply
    72,411.60x = 108,549.36 × 37,341.84
  4. Step 4: Simplify right side
    72,411.60x = 4,053,432,833.22
  5. Step 5: Solve for x
    x = 4,053,432,833.22/72,411.60
  6. Step 6: Final answer
    x = 55,977.67

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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.