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Finding the Fourth Proportional to 46,689.80, 70,039.02 and 18,603.08

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Solution

The fourth proportional to 46,689.80, 70,039.02 and 18,603.08 is: 27,906.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,689.80 : 70,039.02 = 18,603.08 : x
  2. Step 2: Convert to fraction form
    46,689.80/70,039.02 = 18,603.08/x
  3. Step 3: Cross multiply
    46,689.80x = 70,039.02 × 18,603.08
  4. Step 4: Simplify right side
    46,689.80x = 1,302,941,492.18
  5. Step 5: Solve for x
    x = 1,302,941,492.18/46,689.80
  6. Step 6: Final answer
    x = 27,906.34

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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.