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Finding the Fourth Proportional to 14,335.66, 19,754.04 and 10,978.48

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Solution

The fourth proportional to 14,335.66, 19,754.04 and 10,978.48 is: 15,127.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,335.66 : 19,754.04 = 10,978.48 : x
  2. Step 2: Convert to fraction form
    14,335.66/19,754.04 = 10,978.48/x
  3. Step 3: Cross multiply
    14,335.66x = 19,754.04 × 10,978.48
  4. Step 4: Simplify right side
    14,335.66x = 216,869,333.06
  5. Step 5: Solve for x
    x = 216,869,333.06/14,335.66
  6. Step 6: Final answer
    x = 15,127.96

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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.