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Finding the Fourth Proportional to 46,653.16, 69,979.48 and 11,592.80

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Solution

The fourth proportional to 46,653.16, 69,979.48 and 11,592.80 is: 17,389.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,653.16 : 69,979.48 = 11,592.80 : x
  2. Step 2: Convert to fraction form
    46,653.16/69,979.48 = 11,592.80/x
  3. Step 3: Cross multiply
    46,653.16x = 69,979.48 × 11,592.80
  4. Step 4: Simplify right side
    46,653.16x = 811,258,115.74
  5. Step 5: Solve for x
    x = 811,258,115.74/46,653.16
  6. Step 6: Final answer
    x = 17,389.14

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1.5x scale

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.