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Finding the Fourth Proportional to 46,020, 69,053.04 and 21,060

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Solution

The fourth proportional to 46,020, 69,053.04 and 21,060 is: 31,600.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,020 : 69,053.04 = 21,060 : x
  2. Step 2: Convert to fraction form
    46,020/69,053.04 = 21,060/x
  3. Step 3: Cross multiply
    46,020x = 69,053.04 × 21,060
  4. Step 4: Simplify right side
    46,020x = 1,454,257,022.40
  5. Step 5: Solve for x
    x = 1,454,257,022.40/46,020
  6. Step 6: Final answer
    x = 31,600.54

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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.