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Finding the Fourth Proportional to 64,588.32, 89,130.96 and 36,293.76

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Solution

The fourth proportional to 64,588.32, 89,130.96 and 36,293.76 is: 50,084.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,588.32 : 89,130.96 = 36,293.76 : x
  2. Step 2: Convert to fraction form
    64,588.32/89,130.96 = 36,293.76/x
  3. Step 3: Cross multiply
    64,588.32x = 89,130.96 × 36,293.76
  4. Step 4: Simplify right side
    64,588.32x = 3,234,897,670.81
  5. Step 5: Solve for x
    x = 3,234,897,670.81/64,588.32
  6. Step 6: Final answer
    x = 50,084.87

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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.