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Finding the Fourth Proportional to 87,370.32, 120,570.76 and 47,626.32

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Solution

The fourth proportional to 87,370.32, 120,570.76 and 47,626.32 is: 65,724.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,370.32 : 120,570.76 = 47,626.32 : x
  2. Step 2: Convert to fraction form
    87,370.32/120,570.76 = 47,626.32/x
  3. Step 3: Cross multiply
    87,370.32x = 120,570.76 × 47,626.32
  4. Step 4: Simplify right side
    87,370.32x = 5,742,341,598.40
  5. Step 5: Solve for x
    x = 5,742,341,598.40/87,370.32
  6. Step 6: Final answer
    x = 65,724.17

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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.