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Finding the Fourth Proportional to 70,616.19, 105,924.18 and 18,025.67

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Solution

The fourth proportional to 70,616.19, 105,924.18 and 18,025.67 is: 27,038.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,616.19 : 105,924.18 = 18,025.67 : x
  2. Step 2: Convert to fraction form
    70,616.19/105,924.18 = 18,025.67/x
  3. Step 3: Cross multiply
    70,616.19x = 105,924.18 × 18,025.67
  4. Step 4: Simplify right side
    70,616.19x = 1,909,354,313.70
  5. Step 5: Solve for x
    x = 1,909,354,313.70/70,616.19
  6. Step 6: Final answer
    x = 27,038.48

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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.