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Finding the Fourth Proportional to 58,661.66, 80,931.87 and 38,529.45

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Solution

The fourth proportional to 58,661.66, 80,931.87 and 38,529.45 is: 53,156.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,661.66 : 80,931.87 = 38,529.45 : x
  2. Step 2: Convert to fraction form
    58,661.66/80,931.87 = 38,529.45/x
  3. Step 3: Cross multiply
    58,661.66x = 80,931.87 × 38,529.45
  4. Step 4: Simplify right side
    58,661.66x = 3,118,260,438.57
  5. Step 5: Solve for x
    x = 3,118,260,438.57/58,661.66
  6. Step 6: Final answer
    x = 53,156.71

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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.