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Finding the Fourth Proportional to 35,555.49, 49,068.90 and 19,640.16

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Solution

The fourth proportional to 35,555.49, 49,068.90 and 19,640.16 is: 27,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,555.49 : 49,068.90 = 19,640.16 : x
  2. Step 2: Convert to fraction form
    35,555.49/49,068.90 = 19,640.16/x
  3. Step 3: Cross multiply
    35,555.49x = 49,068.90 × 19,640.16
  4. Step 4: Simplify right side
    35,555.49x = 963,721,047.02
  5. Step 5: Solve for x
    x = 963,721,047.02/35,555.49
  6. Step 6: Final answer
    x = 27,104.70

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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.