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Finding the Fourth Proportional to 58,776.84, 81,117.05 and 33,287.66

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Solution

The fourth proportional to 58,776.84, 81,117.05 and 33,287.66 is: 45,939.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,776.84 : 81,117.05 = 33,287.66 : x
  2. Step 2: Convert to fraction form
    58,776.84/81,117.05 = 33,287.66/x
  3. Step 3: Cross multiply
    58,776.84x = 81,117.05 × 33,287.66
  4. Step 4: Simplify right side
    58,776.84x = 2,700,196,512.77
  5. Step 5: Solve for x
    x = 2,700,196,512.77/58,776.84
  6. Step 6: Final answer
    x = 45,939.80

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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.