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Finding the Fourth Proportional to 70,256.54, 105,384.90 and 17,666.04

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Solution

The fourth proportional to 70,256.54, 105,384.90 and 17,666.04 is: 26,499.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,256.54 : 105,384.90 = 17,666.04 : x
  2. Step 2: Convert to fraction form
    70,256.54/105,384.90 = 17,666.04/x
  3. Step 3: Cross multiply
    70,256.54x = 105,384.90 × 17,666.04
  4. Step 4: Simplify right side
    70,256.54x = 1,861,733,858.80
  5. Step 5: Solve for x
    x = 1,861,733,858.80/70,256.54
  6. Step 6: Final answer
    x = 26,499.08

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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.