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Finding the Fourth Proportional to 84,762.94, 116,978.34 and 47,037.19

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Solution

The fourth proportional to 84,762.94, 116,978.34 and 47,037.19 is: 64,914.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,762.94 : 116,978.34 = 47,037.19 : x
  2. Step 2: Convert to fraction form
    84,762.94/116,978.34 = 47,037.19/x
  3. Step 3: Cross multiply
    84,762.94x = 116,978.34 × 47,037.19
  4. Step 4: Simplify right side
    84,762.94x = 5,502,332,404.46
  5. Step 5: Solve for x
    x = 5,502,332,404.46/84,762.94
  6. Step 6: Final answer
    x = 64,914.36

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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.