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Finding the Fourth Proportional to 60,632.40, 90,948.60 and 19,079.40

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Solution

The fourth proportional to 60,632.40, 90,948.60 and 19,079.40 is: 28,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,632.40 : 90,948.60 = 19,079.40 : x
  2. Step 2: Convert to fraction form
    60,632.40/90,948.60 = 19,079.40/x
  3. Step 3: Cross multiply
    60,632.40x = 90,948.60 × 19,079.40
  4. Step 4: Simplify right side
    60,632.40x = 1,735,244,718.84
  5. Step 5: Solve for x
    x = 1,735,244,718.84/60,632.40
  6. Step 6: Final answer
    x = 28,619.10

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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.