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Finding the Fourth Proportional to 58,875, 88,290.90 and 19,420.44

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Solution

The fourth proportional to 58,875, 88,290.90 and 19,420.44 is: 29,123.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,875 : 88,290.90 = 19,420.44 : x
  2. Step 2: Convert to fraction form
    58,875/88,290.90 = 19,420.44/x
  3. Step 3: Cross multiply
    58,875x = 88,290.90 × 19,420.44
  4. Step 4: Simplify right side
    58,875x = 1,714,648,126.00
  5. Step 5: Solve for x
    x = 1,714,648,126.00/58,875
  6. Step 6: Final answer
    x = 29,123.54

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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.