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Finding the Fourth Proportional to 61,219.80, 84,483.36 and 34,364.88

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Solution

The fourth proportional to 61,219.80, 84,483.36 and 34,364.88 is: 47,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,219.80 : 84,483.36 = 34,364.88 : x
  2. Step 2: Convert to fraction form
    61,219.80/84,483.36 = 34,364.88/x
  3. Step 3: Cross multiply
    61,219.80x = 84,483.36 × 34,364.88
  4. Step 4: Simplify right side
    61,219.80x = 2,903,260,528.40
  5. Step 5: Solve for x
    x = 2,903,260,528.40/61,219.80
  6. Step 6: Final answer
    x = 47,423.55

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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.