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Finding the Fourth Proportional to 33,686.40, 47,068.80 and 33,686.40

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Solution

The fourth proportional to 33,686.40, 47,068.80 and 33,686.40 is: 47,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,686.40 : 47,068.80 = 33,686.40 : x
  2. Step 2: Convert to fraction form
    33,686.40/47,068.80 = 33,686.40/x
  3. Step 3: Cross multiply
    33,686.40x = 47,068.80 × 33,686.40
  4. Step 4: Simplify right side
    33,686.40x = 1,585,578,424.32
  5. Step 5: Solve for x
    x = 1,585,578,424.32/33,686.40
  6. Step 6: Final answer
    x = 47,068.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.