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Finding the Fourth Proportional to 46,021, 69,054.54 and 21,061

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Solution

The fourth proportional to 46,021, 69,054.54 and 21,061 is: 31,602.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,021 : 69,054.54 = 21,061 : x
  2. Step 2: Convert to fraction form
    46,021/69,054.54 = 21,061/x
  3. Step 3: Cross multiply
    46,021x = 69,054.54 × 21,061
  4. Step 4: Simplify right side
    46,021x = 1,454,357,666.94
  5. Step 5: Solve for x
    x = 1,454,357,666.94/46,021
  6. Step 6: Final answer
    x = 31,602.04

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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.