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Finding the Fourth Proportional to 7,484.42, 10,328.95 and 4,127.98

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Solution

The fourth proportional to 7,484.42, 10,328.95 and 4,127.98 is: 5,696.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,484.42 : 10,328.95 = 4,127.98 : x
  2. Step 2: Convert to fraction form
    7,484.42/10,328.95 = 4,127.98/x
  3. Step 3: Cross multiply
    7,484.42x = 10,328.95 × 4,127.98
  4. Step 4: Simplify right side
    7,484.42x = 42,637,699.02
  5. Step 5: Solve for x
    x = 42,637,699.02/7,484.42
  6. Step 6: Final answer
    x = 5,696.86

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