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Finding the Fourth Proportional to 19,803.98, 27,330.19 and 10,851.46

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Solution

The fourth proportional to 19,803.98, 27,330.19 and 10,851.46 is: 14,975.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,803.98 : 27,330.19 = 10,851.46 : x
  2. Step 2: Convert to fraction form
    19,803.98/27,330.19 = 10,851.46/x
  3. Step 3: Cross multiply
    19,803.98x = 27,330.19 × 10,851.46
  4. Step 4: Simplify right side
    19,803.98x = 296,572,368.12
  5. Step 5: Solve for x
    x = 296,572,368.12/19,803.98
  6. Step 6: Final answer
    x = 14,975.39

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Double scale
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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.