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Finding the Fourth Proportional to 61,603.68, 85,012.96 and 34,746.10

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Solution

The fourth proportional to 61,603.68, 85,012.96 and 34,746.10 is: 47,949.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,603.68 : 85,012.96 = 34,746.10 : x
  2. Step 2: Convert to fraction form
    61,603.68/85,012.96 = 34,746.10/x
  3. Step 3: Cross multiply
    61,603.68x = 85,012.96 × 34,746.10
  4. Step 4: Simplify right side
    61,603.68x = 2,953,868,809.46
  5. Step 5: Solve for x
    x = 2,953,868,809.46/61,603.68
  6. Step 6: Final answer
    x = 47,949.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.