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Finding the Fourth Proportional to 56,461.19, 84,691.89 and 19,047.51

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Solution

The fourth proportional to 56,461.19, 84,691.89 and 19,047.51 is: 28,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,461.19 : 84,691.89 = 19,047.51 : x
  2. Step 2: Convert to fraction form
    56,461.19/84,691.89 = 19,047.51/x
  3. Step 3: Cross multiply
    56,461.19x = 84,691.89 × 19,047.51
  4. Step 4: Simplify right side
    56,461.19x = 1,613,169,621.69
  5. Step 5: Solve for x
    x = 1,613,169,621.69/56,461.19
  6. Step 6: Final answer
    x = 28,571.30

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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.