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Finding the Fourth Proportional to 58,718.88, 80,937.28 and 48,089.76

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Solution

The fourth proportional to 58,718.88, 80,937.28 and 48,089.76 is: 66,286.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,718.88 : 80,937.28 = 48,089.76 : x
  2. Step 2: Convert to fraction form
    58,718.88/80,937.28 = 48,089.76/x
  3. Step 3: Cross multiply
    58,718.88x = 80,937.28 × 48,089.76
  4. Step 4: Simplify right side
    58,718.88x = 3,892,254,370.25
  5. Step 5: Solve for x
    x = 3,892,254,370.25/58,718.88
  6. Step 6: Final answer
    x = 66,286.25

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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.