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Finding the Fourth Proportional to 85,594.56, 128,359.08 and 29,424.24

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Solution

The fourth proportional to 85,594.56, 128,359.08 and 29,424.24 is: 44,125.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,594.56 : 128,359.08 = 29,424.24 : x
  2. Step 2: Convert to fraction form
    85,594.56/128,359.08 = 29,424.24/x
  3. Step 3: Cross multiply
    85,594.56x = 128,359.08 × 29,424.24
  4. Step 4: Simplify right side
    85,594.56x = 3,776,868,376.10
  5. Step 5: Solve for x
    x = 3,776,868,376.10/85,594.56
  6. Step 6: Final answer
    x = 44,125.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.