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Finding the Fourth Proportional to 58,507.11, 87,848.15 and 56,465.91

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Solution

The fourth proportional to 58,507.11, 87,848.15 and 56,465.91 is: 84,783.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,507.11 : 87,848.15 = 56,465.91 : x
  2. Step 2: Convert to fraction form
    58,507.11/87,848.15 = 56,465.91/x
  3. Step 3: Cross multiply
    58,507.11x = 87,848.15 × 56,465.91
  4. Step 4: Simplify right side
    58,507.11x = 4,960,425,449.24
  5. Step 5: Solve for x
    x = 4,960,425,449.24/58,507.11
  6. Step 6: Final answer
    x = 84,783.29

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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.