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Finding the Fourth Proportional to 64,058.96, 88,402.80 and 40,186.64

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Solution

The fourth proportional to 64,058.96, 88,402.80 and 40,186.64 is: 55,458.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,058.96 : 88,402.80 = 40,186.64 : x
  2. Step 2: Convert to fraction form
    64,058.96/88,402.80 = 40,186.64/x
  3. Step 3: Cross multiply
    64,058.96x = 88,402.80 × 40,186.64
  4. Step 4: Simplify right side
    64,058.96x = 3,552,611,498.59
  5. Step 5: Solve for x
    x = 3,552,611,498.59/64,058.96
  6. Step 6: Final answer
    x = 55,458.46

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1.5x scale

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.