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Finding the Fourth Proportional to 61,920.30, 92,880.45 and 22,478.70

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Solution

The fourth proportional to 61,920.30, 92,880.45 and 22,478.70 is: 33,718.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,920.30 : 92,880.45 = 22,478.70 : x
  2. Step 2: Convert to fraction form
    61,920.30/92,880.45 = 22,478.70/x
  3. Step 3: Cross multiply
    61,920.30x = 92,880.45 × 22,478.70
  4. Step 4: Simplify right side
    61,920.30x = 2,087,831,771.42
  5. Step 5: Solve for x
    x = 2,087,831,771.42/61,920.30
  6. Step 6: Final answer
    x = 33,718.05

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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.