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Finding the Fourth Proportional to 58,666.41, 80,938.42 and 38,534.20

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Solution

The fourth proportional to 58,666.41, 80,938.42 and 38,534.20 is: 53,163.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,666.41 : 80,938.42 = 38,534.20 : x
  2. Step 2: Convert to fraction form
    58,666.41/80,938.42 = 38,534.20/x
  3. Step 3: Cross multiply
    58,666.41x = 80,938.42 × 38,534.20
  4. Step 4: Simplify right side
    58,666.41x = 3,118,897,263.96
  5. Step 5: Solve for x
    x = 3,118,897,263.96/58,666.41
  6. Step 6: Final answer
    x = 53,163.25

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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.