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Finding the Fourth Proportional to 58,510.70, 87,775.16 and 19,058.64

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Solution

The fourth proportional to 58,510.70, 87,775.16 and 19,058.64 is: 28,590.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,510.70 : 87,775.16 = 19,058.64 : x
  2. Step 2: Convert to fraction form
    58,510.70/87,775.16 = 19,058.64/x
  3. Step 3: Cross multiply
    58,510.70x = 87,775.16 × 19,058.64
  4. Step 4: Simplify right side
    58,510.70x = 1,672,875,175.38
  5. Step 5: Solve for x
    x = 1,672,875,175.38/58,510.70
  6. Step 6: Final answer
    x = 28,590.93

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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.