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Finding the Fourth Proportional to 65,276.16, 90,082.80 and 36,983.76

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Solution

The fourth proportional to 65,276.16, 90,082.80 and 36,983.76 is: 51,038.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,276.16 : 90,082.80 = 36,983.76 : x
  2. Step 2: Convert to fraction form
    65,276.16/90,082.80 = 36,983.76/x
  3. Step 3: Cross multiply
    65,276.16x = 90,082.80 × 36,983.76
  4. Step 4: Simplify right side
    65,276.16x = 3,331,600,655.33
  5. Step 5: Solve for x
    x = 3,331,600,655.33/65,276.16
  6. Step 6: Final answer
    x = 51,038.55

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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.