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Finding the Fourth Proportional to 93,795.84, 129,431.52 and 51,347.52

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Solution

The fourth proportional to 93,795.84, 129,431.52 and 51,347.52 is: 70,855.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,795.84 : 129,431.52 = 51,347.52 : x
  2. Step 2: Convert to fraction form
    93,795.84/129,431.52 = 51,347.52/x
  3. Step 3: Cross multiply
    93,795.84x = 129,431.52 × 51,347.52
  4. Step 4: Simplify right side
    93,795.84x = 6,645,987,561.83
  5. Step 5: Solve for x
    x = 6,645,987,561.83/93,795.84
  6. Step 6: Final answer
    x = 70,855.89

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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.