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Finding the Fourth Proportional to 86,358.93, 129,482.75 and 36,425.67

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Solution

The fourth proportional to 86,358.93, 129,482.75 and 36,425.67 is: 54,615.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,358.93 : 129,482.75 = 36,425.67 : x
  2. Step 2: Convert to fraction form
    86,358.93/129,482.75 = 36,425.67/x
  3. Step 3: Cross multiply
    86,358.93x = 129,482.75 × 36,425.67
  4. Step 4: Simplify right side
    86,358.93x = 4,716,495,527.70
  5. Step 5: Solve for x
    x = 4,716,495,527.70/86,358.93
  6. Step 6: Final answer
    x = 54,615.03

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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.