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Finding the Fourth Proportional to 38,798.33, 53,541.54 and 21,803.04

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Solution

The fourth proportional to 38,798.33, 53,541.54 and 21,803.04 is: 30,088.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,798.33 : 53,541.54 = 21,803.04 : x
  2. Step 2: Convert to fraction form
    38,798.33/53,541.54 = 21,803.04/x
  3. Step 3: Cross multiply
    38,798.33x = 53,541.54 × 21,803.04
  4. Step 4: Simplify right side
    38,798.33x = 1,167,368,338.28
  5. Step 5: Solve for x
    x = 1,167,368,338.28/38,798.33
  6. Step 6: Final answer
    x = 30,088.11

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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.