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Finding the Fourth Proportional to 84,689.38, 127,033.91 and 46,736.81

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Solution

The fourth proportional to 84,689.38, 127,033.91 and 46,736.81 is: 70,105.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,689.38 : 127,033.91 = 46,736.81 : x
  2. Step 2: Convert to fraction form
    84,689.38/127,033.91 = 46,736.81/x
  3. Step 3: Cross multiply
    84,689.38x = 127,033.91 × 46,736.81
  4. Step 4: Simplify right side
    84,689.38x = 5,937,159,715.23
  5. Step 5: Solve for x
    x = 5,937,159,715.23/84,689.38
  6. Step 6: Final answer
    x = 70,105.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.