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Finding the Fourth Proportional to 28,945.08, 43,416.54 and 10,477.08

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Solution

The fourth proportional to 28,945.08, 43,416.54 and 10,477.08 is: 15,715.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.08 : 43,416.54 = 10,477.08 : x
  2. Step 2: Convert to fraction form
    28,945.08/43,416.54 = 10,477.08/x
  3. Step 3: Cross multiply
    28,945.08x = 43,416.54 × 10,477.08
  4. Step 4: Simplify right side
    28,945.08x = 454,878,562.90
  5. Step 5: Solve for x
    x = 454,878,562.90/28,945.08
  6. Step 6: Final answer
    x = 15,715.23

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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.