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Finding the Fourth Proportional to 86,695.70, 130,043.55 and 24,366.20

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Solution

The fourth proportional to 86,695.70, 130,043.55 and 24,366.20 is: 36,549.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,695.70 : 130,043.55 = 24,366.20 : x
  2. Step 2: Convert to fraction form
    86,695.70/130,043.55 = 24,366.20/x
  3. Step 3: Cross multiply
    86,695.70x = 130,043.55 × 24,366.20
  4. Step 4: Simplify right side
    86,695.70x = 3,168,667,148.01
  5. Step 5: Solve for x
    x = 3,168,667,148.01/86,695.70
  6. Step 6: Final answer
    x = 36,549.30

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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.