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Finding the Fourth Proportional to 60,547.84, 90,830.28 and 21,099.28

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Solution

The fourth proportional to 60,547.84, 90,830.28 and 21,099.28 is: 31,651.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,547.84 : 90,830.28 = 21,099.28 : x
  2. Step 2: Convert to fraction form
    60,547.84/90,830.28 = 21,099.28/x
  3. Step 3: Cross multiply
    60,547.84x = 90,830.28 × 21,099.28
  4. Step 4: Simplify right side
    60,547.84x = 1,916,453,510.20
  5. Step 5: Solve for x
    x = 1,916,453,510.20/60,547.84
  6. Step 6: Final answer
    x = 31,651.89

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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.