Home / 7,715.29-10,646.79-4,528.15

Finding the Fourth Proportional to 7,715.29, 10,646.79 and 4,528.15

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Solution

The fourth proportional to 7,715.29, 10,646.79 and 4,528.15 is: 6,248.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.29 : 10,646.79 = 4,528.15 : x
  2. Step 2: Convert to fraction form
    7,715.29/10,646.79 = 4,528.15/x
  3. Step 3: Cross multiply
    7,715.29x = 10,646.79 × 4,528.15
  4. Step 4: Simplify right side
    7,715.29x = 48,210,262.14
  5. Step 5: Solve for x
    x = 48,210,262.14/7,715.29
  6. Step 6: Final answer
    x = 6,248.66

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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.