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Finding the Fourth Proportional to 74,653.40, 112,005.70 and 33,130.20

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Solution

The fourth proportional to 74,653.40, 112,005.70 and 33,130.20 is: 49,706.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,653.40 : 112,005.70 = 33,130.20 : x
  2. Step 2: Convert to fraction form
    74,653.40/112,005.70 = 33,130.20/x
  3. Step 3: Cross multiply
    74,653.40x = 112,005.70 × 33,130.20
  4. Step 4: Simplify right side
    74,653.40x = 3,710,771,242.14
  5. Step 5: Solve for x
    x = 3,710,771,242.14/74,653.40
  6. Step 6: Final answer
    x = 49,706.66

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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.