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Finding the Fourth Proportional to 84,685.34, 116,869.84 and 48,880.10

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Solution

The fourth proportional to 84,685.34, 116,869.84 and 48,880.10 is: 67,456.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,685.34 : 116,869.84 = 48,880.10 : x
  2. Step 2: Convert to fraction form
    84,685.34/116,869.84 = 48,880.10/x
  3. Step 3: Cross multiply
    84,685.34x = 116,869.84 × 48,880.10
  4. Step 4: Simplify right side
    84,685.34x = 5,712,609,466.18
  5. Step 5: Solve for x
    x = 5,712,609,466.18/84,685.34
  6. Step 6: Final answer
    x = 67,456.89

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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.