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Finding the Fourth Proportional to 10,488.64, 14,473.04 and 5,772.64

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Solution

The fourth proportional to 10,488.64, 14,473.04 and 5,772.64 is: 7,965.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488.64 : 14,473.04 = 5,772.64 : x
  2. Step 2: Convert to fraction form
    10,488.64/14,473.04 = 5,772.64/x
  3. Step 3: Cross multiply
    10,488.64x = 14,473.04 × 5,772.64
  4. Step 4: Simplify right side
    10,488.64x = 83,547,649.63
  5. Step 5: Solve for x
    x = 83,547,649.63/10,488.64
  6. Step 6: Final answer
    x = 7,965.54

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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.