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Finding the Fourth Proportional to 74,809.71, 112,119.95 and 32,678.67

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Solution

The fourth proportional to 74,809.71, 112,119.95 and 32,678.67 is: 48,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,809.71 : 112,119.95 = 32,678.67 : x
  2. Step 2: Convert to fraction form
    74,809.71/112,119.95 = 32,678.67/x
  3. Step 3: Cross multiply
    74,809.71x = 112,119.95 × 32,678.67
  4. Step 4: Simplify right side
    74,809.71x = 3,663,930,683.07
  5. Step 5: Solve for x
    x = 3,663,930,683.07/74,809.71
  6. Step 6: Final answer
    x = 48,976.67

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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.