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Finding the Fourth Proportional to 64,462.92, 88,962.75 and 42,915.48

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Solution

The fourth proportional to 64,462.92, 88,962.75 and 42,915.48 is: 59,225.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,462.92 : 88,962.75 = 42,915.48 : x
  2. Step 2: Convert to fraction form
    64,462.92/88,962.75 = 42,915.48/x
  3. Step 3: Cross multiply
    64,462.92x = 88,962.75 × 42,915.48
  4. Step 4: Simplify right side
    64,462.92x = 3,817,879,118.37
  5. Step 5: Solve for x
    x = 3,817,879,118.37/64,462.92
  6. Step 6: Final answer
    x = 59,225.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.