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Finding the Fourth Proportional to 56,711.79, 78,266.79 and 32,838.89

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Solution

The fourth proportional to 56,711.79, 78,266.79 and 32,838.89 is: 45,320.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,711.79 : 78,266.79 = 32,838.89 : x
  2. Step 2: Convert to fraction form
    56,711.79/78,266.79 = 32,838.89/x
  3. Step 3: Cross multiply
    56,711.79x = 78,266.79 × 32,838.89
  4. Step 4: Simplify right side
    56,711.79x = 2,570,194,116.13
  5. Step 5: Solve for x
    x = 2,570,194,116.13/56,711.79
  6. Step 6: Final answer
    x = 45,320.28

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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.