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Finding the Fourth Proportional to 55,532.96, 76,588.96 and 35,390.72

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Solution

The fourth proportional to 55,532.96, 76,588.96 and 35,390.72 is: 48,809.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,532.96 : 76,588.96 = 35,390.72 : x
  2. Step 2: Convert to fraction form
    55,532.96/76,588.96 = 35,390.72/x
  3. Step 3: Cross multiply
    55,532.96x = 76,588.96 × 35,390.72
  4. Step 4: Simplify right side
    55,532.96x = 2,710,538,438.45
  5. Step 5: Solve for x
    x = 2,710,538,438.45/55,532.96
  6. Step 6: Final answer
    x = 48,809.54

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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.