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Finding the Fourth Proportional to 13,312.42, 19,968.63 and 4,547.41

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Solution

The fourth proportional to 13,312.42, 19,968.63 and 4,547.41 is: 6,821.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.42 : 19,968.63 = 4,547.41 : x
  2. Step 2: Convert to fraction form
    13,312.42/19,968.63 = 4,547.41/x
  3. Step 3: Cross multiply
    13,312.42x = 19,968.63 × 4,547.41
  4. Step 4: Simplify right side
    13,312.42x = 90,805,480.77
  5. Step 5: Solve for x
    x = 90,805,480.77/13,312.42
  6. Step 6: Final answer
    x = 6,821.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.