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Finding the Fourth Proportional to 70,887.48, 97,821.04 and 39,055.68

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Solution

The fourth proportional to 70,887.48, 97,821.04 and 39,055.68 is: 53,894.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,887.48 : 97,821.04 = 39,055.68 : x
  2. Step 2: Convert to fraction form
    70,887.48/97,821.04 = 39,055.68/x
  3. Step 3: Cross multiply
    70,887.48x = 97,821.04 × 39,055.68
  4. Step 4: Simplify right side
    70,887.48x = 3,820,467,235.51
  5. Step 5: Solve for x
    x = 3,820,467,235.51/70,887.48
  6. Step 6: Final answer
    x = 53,894.81

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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.