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Finding the Fourth Proportional to 68,802.16, 103,201.08 and 19,554.16

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Solution

The fourth proportional to 68,802.16, 103,201.08 and 19,554.16 is: 29,330.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,802.16 : 103,201.08 = 19,554.16 : x
  2. Step 2: Convert to fraction form
    68,802.16/103,201.08 = 19,554.16/x
  3. Step 3: Cross multiply
    68,802.16x = 103,201.08 × 19,554.16
  4. Step 4: Simplify right side
    68,802.16x = 2,018,010,430.49
  5. Step 5: Solve for x
    x = 2,018,010,430.49/68,802.16
  6. Step 6: Final answer
    x = 29,330.63

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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.