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Finding the Fourth Proportional to 86,307.60, 129,477.72 and 33,713.76

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Solution

The fourth proportional to 86,307.60, 129,477.72 and 33,713.76 is: 50,577.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,307.60 : 129,477.72 = 33,713.76 : x
  2. Step 2: Convert to fraction form
    86,307.60/129,477.72 = 33,713.76/x
  3. Step 3: Cross multiply
    86,307.60x = 129,477.72 × 33,713.76
  4. Step 4: Simplify right side
    86,307.60x = 4,365,180,777.43
  5. Step 5: Solve for x
    x = 4,365,180,777.43/86,307.60
  6. Step 6: Final answer
    x = 50,577.01

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1.5x scale

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.