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Finding the Fourth Proportional to 25,790.50, 38,703.04 and 9,374.50

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Solution

The fourth proportional to 25,790.50, 38,703.04 and 9,374.50 is: 14,068.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,790.50 : 38,703.04 = 9,374.50 : x
  2. Step 2: Convert to fraction form
    25,790.50/38,703.04 = 9,374.50/x
  3. Step 3: Cross multiply
    25,790.50x = 38,703.04 × 9,374.50
  4. Step 4: Simplify right side
    25,790.50x = 362,821,648.48
  5. Step 5: Solve for x
    x = 362,821,648.48/25,790.50
  6. Step 6: Final answer
    x = 14,068.03

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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.