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Finding the Fourth Proportional to 61,368, 92,051.80 and 19,248.42

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Solution

The fourth proportional to 61,368, 92,051.80 and 19,248.42 is: 28,872.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,368 : 92,051.80 = 19,248.42 : x
  2. Step 2: Convert to fraction form
    61,368/92,051.80 = 19,248.42/x
  3. Step 3: Cross multiply
    61,368x = 92,051.80 × 19,248.42
  4. Step 4: Simplify right side
    61,368x = 1,771,851,708.16
  5. Step 5: Solve for x
    x = 1,771,851,708.16/61,368
  6. Step 6: Final answer
    x = 28,872.57

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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.