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Finding the Fourth Proportional to 66,034.92, 91,127.40 and 35,819.66

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Solution

The fourth proportional to 66,034.92, 91,127.40 and 35,819.66 is: 49,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,034.92 : 91,127.40 = 35,819.66 : x
  2. Step 2: Convert to fraction form
    66,034.92/91,127.40 = 35,819.66/x
  3. Step 3: Cross multiply
    66,034.92x = 91,127.40 × 35,819.66
  4. Step 4: Simplify right side
    66,034.92x = 3,264,152,484.68
  5. Step 5: Solve for x
    x = 3,264,152,484.68/66,034.92
  6. Step 6: Final answer
    x = 49,430.70

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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.