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Finding the Fourth Proportional to 84,685.84, 116,870.53 and 48,880.60

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Solution

The fourth proportional to 84,685.84, 116,870.53 and 48,880.60 is: 67,457.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,685.84 : 116,870.53 = 48,880.60 : x
  2. Step 2: Convert to fraction form
    84,685.84/116,870.53 = 48,880.60/x
  3. Step 3: Cross multiply
    84,685.84x = 116,870.53 × 48,880.60
  4. Step 4: Simplify right side
    84,685.84x = 5,712,701,628.72
  5. Step 5: Solve for x
    x = 5,712,701,628.72/84,685.84
  6. Step 6: Final answer
    x = 67,457.58

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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.