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Finding the Fourth Proportional to 56,312.96, 84,459.71 and 16,859.48

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Solution

The fourth proportional to 56,312.96, 84,459.71 and 16,859.48 is: 25,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,312.96 : 84,459.71 = 16,859.48 : x
  2. Step 2: Convert to fraction form
    56,312.96/84,459.71 = 16,859.48/x
  3. Step 3: Cross multiply
    56,312.96x = 84,459.71 × 16,859.48
  4. Step 4: Simplify right side
    56,312.96x = 1,423,946,411.40
  5. Step 5: Solve for x
    x = 1,423,946,411.40/56,312.96
  6. Step 6: Final answer
    x = 25,286.30

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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.