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Finding the Fourth Proportional to 10,653.66, 14,703.93 and 6,678.18

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Solution

The fourth proportional to 10,653.66, 14,703.93 and 6,678.18 is: 9,217.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.66 : 14,703.93 = 6,678.18 : x
  2. Step 2: Convert to fraction form
    10,653.66/14,703.93 = 6,678.18/x
  3. Step 3: Cross multiply
    10,653.66x = 14,703.93 × 6,678.18
  4. Step 4: Simplify right side
    10,653.66x = 98,195,491.25
  5. Step 5: Solve for x
    x = 98,195,491.25/10,653.66
  6. Step 6: Final answer
    x = 9,217.07

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1.5x scale

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.