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Finding the Fourth Proportional to 66,125.99, 91,253.59 and 35,911.10

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Solution

The fourth proportional to 66,125.99, 91,253.59 and 35,911.10 is: 49,557.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,125.99 : 91,253.59 = 35,911.10 : x
  2. Step 2: Convert to fraction form
    66,125.99/91,253.59 = 35,911.10/x
  3. Step 3: Cross multiply
    66,125.99x = 91,253.59 × 35,911.10
  4. Step 4: Simplify right side
    66,125.99x = 3,277,016,934.21
  5. Step 5: Solve for x
    x = 3,277,016,934.21/66,125.99
  6. Step 6: Final answer
    x = 49,557.17

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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.