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Finding the Fourth Proportional to 59,590.56, 89,397.04 and 28,428

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Solution

The fourth proportional to 59,590.56, 89,397.04 and 28,428 is: 42,647.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,590.56 : 89,397.04 = 28,428 : x
  2. Step 2: Convert to fraction form
    59,590.56/89,397.04 = 28,428/x
  3. Step 3: Cross multiply
    59,590.56x = 89,397.04 × 28,428
  4. Step 4: Simplify right side
    59,590.56x = 2,541,379,053.12
  5. Step 5: Solve for x
    x = 2,541,379,053.12/59,590.56
  6. Step 6: Final answer
    x = 42,647.34

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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.