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Finding the Fourth Proportional to 61,904.93, 92,870.72 and 19,209.51

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Solution

The fourth proportional to 61,904.93, 92,870.72 and 19,209.51 is: 28,818.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,904.93 : 92,870.72 = 19,209.51 : x
  2. Step 2: Convert to fraction form
    61,904.93/92,870.72 = 19,209.51/x
  3. Step 3: Cross multiply
    61,904.93x = 92,870.72 × 19,209.51
  4. Step 4: Simplify right side
    61,904.93x = 1,784,001,024.55
  5. Step 5: Solve for x
    x = 1,784,001,024.55/61,904.93
  6. Step 6: Final answer
    x = 28,818.40

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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.