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Finding the Fourth Proportional to 58,445.74, 87,730.61 and 47,484.77

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Solution

The fourth proportional to 58,445.74, 87,730.61 and 47,484.77 is: 71,277.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,445.74 : 87,730.61 = 47,484.77 : x
  2. Step 2: Convert to fraction form
    58,445.74/87,730.61 = 47,484.77/x
  3. Step 3: Cross multiply
    58,445.74x = 87,730.61 × 47,484.77
  4. Step 4: Simplify right side
    58,445.74x = 4,165,867,837.81
  5. Step 5: Solve for x
    x = 4,165,867,837.81/58,445.74
  6. Step 6: Final answer
    x = 71,277.53

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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.