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Finding the Fourth Proportional to 59,655.84, 89,478.64 and 28,058.48

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Solution

The fourth proportional to 59,655.84, 89,478.64 and 28,058.48 is: 42,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,655.84 : 89,478.64 = 28,058.48 : x
  2. Step 2: Convert to fraction form
    59,655.84/89,478.64 = 28,058.48/x
  3. Step 3: Cross multiply
    59,655.84x = 89,478.64 × 28,058.48
  4. Step 4: Simplify right side
    59,655.84x = 2,510,634,630.87
  5. Step 5: Solve for x
    x = 2,510,634,630.87/59,655.84
  6. Step 6: Final answer
    x = 42,085.31

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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.