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Finding the Fourth Proportional to 46,931.51, 70,396.51 and 11,393.11

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Solution

The fourth proportional to 46,931.51, 70,396.51 and 11,393.11 is: 17,089.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,931.51 : 70,396.51 = 11,393.11 : x
  2. Step 2: Convert to fraction form
    46,931.51/70,396.51 = 11,393.11/x
  3. Step 3: Cross multiply
    46,931.51x = 70,396.51 × 11,393.11
  4. Step 4: Simplify right side
    46,931.51x = 802,035,182.05
  5. Step 5: Solve for x
    x = 802,035,182.05/46,931.51
  6. Step 6: Final answer
    x = 17,089.48

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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.