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Finding the Fourth Proportional to 84,760.76, 116,970.54 and 47,035.64

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Solution

The fourth proportional to 84,760.76, 116,970.54 and 47,035.64 is: 64,909.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,760.76 : 116,970.54 = 47,035.64 : x
  2. Step 2: Convert to fraction form
    84,760.76/116,970.54 = 47,035.64/x
  3. Step 3: Cross multiply
    84,760.76x = 116,970.54 × 47,035.64
  4. Step 4: Simplify right side
    84,760.76x = 5,501,784,210.05
  5. Step 5: Solve for x
    x = 5,501,784,210.05/84,760.76
  6. Step 6: Final answer
    x = 64,909.57

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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.