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Finding the Fourth Proportional to 19,384.76, 26,750.87 and 10,886.88

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Solution

The fourth proportional to 19,384.76, 26,750.87 and 10,886.88 is: 15,023.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,384.76 : 26,750.87 = 10,886.88 : x
  2. Step 2: Convert to fraction form
    19,384.76/26,750.87 = 10,886.88/x
  3. Step 3: Cross multiply
    19,384.76x = 26,750.87 × 10,886.88
  4. Step 4: Simplify right side
    19,384.76x = 291,233,457.15
  5. Step 5: Solve for x
    x = 291,233,457.15/19,384.76
  6. Step 6: Final answer
    x = 15,023.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.