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Finding the Fourth Proportional to 70,885.10, 97,822.18 and 39,055.14

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Solution

The fourth proportional to 70,885.10, 97,822.18 and 39,055.14 is: 53,896.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,885.10 : 97,822.18 = 39,055.14 : x
  2. Step 2: Convert to fraction form
    70,885.10/97,822.18 = 39,055.14/x
  3. Step 3: Cross multiply
    70,885.10x = 97,822.18 × 39,055.14
  4. Step 4: Simplify right side
    70,885.10x = 3,820,458,935.01
  5. Step 5: Solve for x
    x = 3,820,458,935.01/70,885.10
  6. Step 6: Final answer
    x = 53,896.50

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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.