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Finding the Fourth Proportional to 66,603.61, 99,943.20 and 24,478.21

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Solution

The fourth proportional to 66,603.61, 99,943.20 and 24,478.21 is: 36,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,603.61 : 99,943.20 = 24,478.21 : x
  2. Step 2: Convert to fraction form
    66,603.61/99,943.20 = 24,478.21/x
  3. Step 3: Cross multiply
    66,603.61x = 99,943.20 × 24,478.21
  4. Step 4: Simplify right side
    66,603.61x = 2,446,430,637.67
  5. Step 5: Solve for x
    x = 2,446,430,637.67/66,603.61
  6. Step 6: Final answer
    x = 36,731.20

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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.