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Finding the Fourth Proportional to 58,646.79, 80,979.16 and 54,168.91

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Solution

The fourth proportional to 58,646.79, 80,979.16 and 54,168.91 is: 74,796.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,646.79 : 80,979.16 = 54,168.91 : x
  2. Step 2: Convert to fraction form
    58,646.79/80,979.16 = 54,168.91/x
  3. Step 3: Cross multiply
    58,646.79x = 80,979.16 × 54,168.91
  4. Step 4: Simplify right side
    58,646.79x = 4,386,552,492.05
  5. Step 5: Solve for x
    x = 4,386,552,492.05/58,646.79
  6. Step 6: Final answer
    x = 74,796.12

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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.