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Finding the Fourth Proportional to 69,779.84, 95,007.68 and 69,558.40

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Solution

The fourth proportional to 69,779.84, 95,007.68 and 69,558.40 is: 94,706.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,779.84 : 95,007.68 = 69,558.40 : x
  2. Step 2: Convert to fraction form
    69,779.84/95,007.68 = 69,558.40/x
  3. Step 3: Cross multiply
    69,779.84x = 95,007.68 × 69,558.40
  4. Step 4: Simplify right side
    69,779.84x = 6,608,582,208.51
  5. Step 5: Solve for x
    x = 6,608,582,208.51/69,779.84
  6. Step 6: Final answer
    x = 94,706.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.