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Finding the Fourth Proportional to 25,946.70, 38,905.65 and 10,346.70

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Solution

The fourth proportional to 25,946.70, 38,905.65 and 10,346.70 is: 15,514.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,946.70 : 38,905.65 = 10,346.70 : x
  2. Step 2: Convert to fraction form
    25,946.70/38,905.65 = 10,346.70/x
  3. Step 3: Cross multiply
    25,946.70x = 38,905.65 × 10,346.70
  4. Step 4: Simplify right side
    25,946.70x = 402,545,088.86
  5. Step 5: Solve for x
    x = 402,545,088.86/25,946.70
  6. Step 6: Final answer
    x = 15,514.31

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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.