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Finding the Fourth Proportional to 38,368.63, 57,516.03 and 19,657.51

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Solution

The fourth proportional to 38,368.63, 57,516.03 and 19,657.51 is: 29,467.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,368.63 : 57,516.03 = 19,657.51 : x
  2. Step 2: Convert to fraction form
    38,368.63/57,516.03 = 19,657.51/x
  3. Step 3: Cross multiply
    38,368.63x = 57,516.03 × 19,657.51
  4. Step 4: Simplify right side
    38,368.63x = 1,130,621,934.89
  5. Step 5: Solve for x
    x = 1,130,621,934.89/38,368.63
  6. Step 6: Final answer
    x = 29,467.35

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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.